release v2.1.11

doc: update readme file
clean code
2026-02-05 05:12:26 +08:00 · 2022-12-04 11:11:05 +08:00 · 2022-12-04 11:10:19 +08:00 · 2022-12-03 14:41:58 +08:00 · 2022-12-03 14:33:15 +08:00 · 2022-12-03 14:20:37 +08:00
49 changed files with 3129 additions and 1313 deletions
--- a/README.md
+++ b/README.md
@@ -4,12 +4,13 @@
 <br/>

 ![Go version](https://img.shields.io/badge/go-%3E%3Dv1.18-9cf)
-[![Release](https://img.shields.io/badge/release-2.1.7-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-2.1.11-green.svg)](https://github.com/duke-git/lancet/releases)
 [![GoDoc](https://godoc.org/github.com/duke-git/lancet/v2?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet/v2)
 [![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet/v2)](https://goreportcard.com/report/github.com/duke-git/lancet/v2)
 [![test](https://github.com/duke-git/lancet/actions/workflows/codecov.yml/badge.svg?branch=main&event=push)](https://github.com/duke-git/lancet/actions/workflows/codecov.yml)
 [![codecov](https://codecov.io/gh/duke-git/lancet/branch/main/graph/badge.svg?token=FC48T1F078)](https://codecov.io/gh/duke-git/lancet)
 [![License](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/duke-git/lancet/blob/main/LICENSE)
+
 </div>

 <div STYLE="page-break-after: always;"></div>
@@ -18,26 +19,29 @@
    Lancet is a comprehensive, efficient, and reusable util function library of go. Inspired by the java apache common package and lodash.js.
 </p>

-English | [简体中文](./README_zh-CN.md)
+English | [简体中文](./README_zh-CN.md) | [Website](https://uvdream.github.io/lancet-docs/en/)

 ## Feature

- 👏 Comprehensive, efficient and reusable.
- 💪 300+ go util functions, support string, slice, datetime, net, crypt...
- 💅 Only depend on the go standard library.
- 🌍 Unit test for every exported function.
+-   👏 Comprehensive, efficient and reusable.
+-   💪 300+ go util functions, support string, slice, datetime, net, crypt...
+-   💅 Only depend on the go standard library.
+-   🌍 Unit test for every exported function.

 ## Installation
+
 ### Note:

 1. <b>For users who use go1.18 and above, it is recommended to install lancet v2.x.x. Cause v2.x.x rewrite all functions with generics of go1.18.</b>
+
 ```go
 go get github.com/duke-git/lancet/v2 // will install latest version of v2.x.x
 ```

-2. <b>For users who use version below go1.18, you should install v1.x.x. now latest v1 is v1.3.2. </b>
+2. <b>For users who use version below go1.18, you should install v1.x.x. now latest v1 is v1.3.4. </b>
+
 ```go
-go get github.com/duke-git/lancet@v1.3.2 // below go1.18, install latest version of v1.x.x
+go get github.com/duke-git/lancet@v1.3.3 // below go1.18, install latest version of v1.x.x
 ```

 ## Usage
@@ -68,83 +72,90 @@ func main() {
 ```

 ## API Documentation
+
 ## [lancet API doc](https://uvdream.github.io/lancet-docs/) Thanks [@UvDream](https://github.com/UvDream) for contributing.
+
 ### 1. Algorithm package implements some basic algorithm. eg. sort, search.

 ```go
 import "github.com/duke-git/lancet/v2/algorithm"
 ```
+
 #### Function list:
- [BubbleSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#BubbleSort)
- [CountSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#CountSort)
- [HeapSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#HeapSort)
- [InsertionSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#InsertionSort)
- [MergeSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#MergeSort)
- [QuickSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#QuickSort)
- [SelectionSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#SelectionSort)
- [ShellSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#ShellSort)
- [BinarySearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#BinarySearch)
- [BinaryIterativeSearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#BinaryIterativeSearch)
- [LinearSearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#LinearSearch)
- [LRUCache](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#LRUCache)
-

+-   [BubbleSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#BubbleSort)
+-   [CountSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#CountSort)
+-   [HeapSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#HeapSort)
+-   [InsertionSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#InsertionSort)
+-   [MergeSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#MergeSort)
+-   [QuickSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#QuickSort)
+-   [SelectionSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#SelectionSort)
+-   [ShellSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#ShellSort)
+-   [BinarySearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#BinarySearch)
+-   [BinaryIterativeSearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#BinaryIterativeSearch)
+-   [LinearSearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#LinearSearch)
+-   [LRUCache](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#LRUCache)

 ### 2. Concurrency package contain some functions to support concurrent programming. eg, goroutine, channel, async.

 ```go
 import "github.com/duke-git/lancet/v2/concurrency"
 ```
-#### Function list:
- [NewChannel](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#NewChannel)
- [Bridge](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Bridge)
- [FanIn](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#FanIn)
- [Generate](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Generate)
- [Or](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Or)
- [OrDone](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#OrDone)
- [Repeat](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Repeat)
- [RepeatFn](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#RepeatFn)
- [Take](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Take)
- [Tee](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Tee)

+#### Function list:
+
+-   [NewChannel](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#NewChannel)
+-   [Bridge](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Bridge)
+-   [FanIn](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#FanIn)
+-   [Generate](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Generate)
+-   [Or](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Or)
+-   [OrDone](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#OrDone)
+-   [Repeat](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Repeat)
+-   [RepeatFn](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#RepeatFn)
+-   [Take](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Take)
+-   [Tee](https://github.com/duke-git/lancet/blob/main/docs/concurrency.md#Tee)

 ### 3. Condition package contains some functions for conditional judgment. eg. And, Or, TernaryOperator...

 ```go
 import "github.com/duke-git/lancet/v2/condition"
 ```
+
 #### Function list:
- [Bool](https://github.com/duke-git/lancet/blob/main/docs/condition.md#Bool)
- [And](https://github.com/duke-git/lancet/blob/main/docs/condition.md#And)
- [Or](https://github.com/duke-git/lancet/blob/main/docs/condition.md#Or)
- [Xor](https://github.com/duke-git/lancet/blob/main/docs/condition.md#Xor)
- [Nor](https://github.com/duke-git/lancet/blob/main/docs/condition.md#Nor)
- [Nand](https://github.com/duke-git/lancet/blob/main/docs/condition.md#Nand)
- [TernaryOperator](https://github.com/duke-git/lancet/blob/main/docs/condition.md#TernaryOperator)
-  
+
+-   [Bool](https://github.com/duke-git/lancet/blob/main/docs/condition.md#Bool)
+-   [And](https://github.com/duke-git/lancet/blob/main/docs/condition.md#And)
+-   [Or](https://github.com/duke-git/lancet/blob/main/docs/condition.md#Or)
+-   [Xor](https://github.com/duke-git/lancet/blob/main/docs/condition.md#Xor)
+-   [Nor](https://github.com/duke-git/lancet/blob/main/docs/condition.md#Nor)
+-   [Nand](https://github.com/duke-git/lancet/blob/main/docs/condition.md#Nand)
+-   [TernaryOperator](https://github.com/duke-git/lancet/blob/main/docs/condition.md#TernaryOperator)
+
 ### 4. Convertor package contains some functions for data convertion.

 ```go
 import "github.com/duke-git/lancet/v2/convertor"
 ```
+
 #### Function list:
- [ColorHexToRGB](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ColorHexToRGB)
- [ColorRGBToHex](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ColorRGBToHex)
- [ToBool](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToBool)
- [ToBytes](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToBytes)
- [ToChar](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToChar)
- [ToChannel](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToChannel)
- [ToFloat](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToFloat)
- [ToInt](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToInt)
- [ToJson](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToJson)
- [ToMap](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToMap)
- [ToPointer](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToPointer)
- [ToString](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToString)
- [StructToMap](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#StructToMap)
- [MapToSlice](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#MapToSlice)
- [EncodeByte](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#EncodeByte)
- [DecodeByte](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#DecodeByte)
-  
+
+-   [ColorHexToRGB](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ColorHexToRGB)
+-   [ColorRGBToHex](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ColorRGBToHex)
+-   [ToBool](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToBool)
+-   [ToBytes](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToBytes)
+-   [ToChar](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToChar)
+-   [ToChannel](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToChannel)
+-   [ToFloat](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToFloat)
+-   [ToInt](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToInt)
+-   [ToJson](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToJson)
+-   [ToMap](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToMap)
+-   [ToPointer](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToPointer)
+-   [ToString](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#ToString)
+-   [StructToMap](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#StructToMap)
+-   [MapToSlice](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#MapToSlice)
+-   [EncodeByte](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#EncodeByte)
+-   [DecodeByte](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#DecodeByte)
+
 ### 5. Cryptor package is for data encryption and decryption.

 ```go
@@ -152,82 +163,81 @@ import "github.com/duke-git/lancet/v2/cryptor"
 ```

 #### Function list:
- [AesEcbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesEcbEncrypt)
- [AesEcbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesEcbDecrypt)
- [AesCbcEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesCbcEncrypt)
- [AesCbcDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesCbcDecrypt)
- [AesCtrCrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesCtrCrypt)
- [AesCfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesCfbEncrypt)
- [AesCfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesCfbDecrypt)
- [AesOfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesOfbEncrypt)
- [AesOfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesOfbDecrypt)
- [Base64StdEncode](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#Base64StdEncode)
- [Base64StdDecode](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#Base64StdDecode)
- [DesEcbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesEcbEncrypt)
- [DesEcbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesEcbDecrypt)
- [DesCbcEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesCbcEncrypt)
- [DesCbcDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesCbcDecrypt)
- [DesCtrCrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesCtrCrypt)
- [DesCfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesCfbEncrypt)
- [DesCfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesCfbDecrypt)
- [DesOfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesOfbEncrypt)
- [DesOfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesOfbDecrypt)
- [HmacMd5](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#HmacMd5)
- [HmacSha1](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#HmacSha1)
- [HmacSha256](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#HmacSha256)
- [HmacSha512](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#HmacSha512)
- [Md5String](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#Md5String)
- [Md5File](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#Md5File)
- [Sha1](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#Sha1)
- [Sha256](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#Sha256)
- [Sha512](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#Sha512)
- [GenerateRsaKey](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#GenerateRsaKey)
- [RsaEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#RsaEncrypt)
- [RsaDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#RsaDecrypt)
+
+-   [AesEcbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesEcbEncrypt)
+-   [AesEcbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesEcbDecrypt)
+-   [AesCbcEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesCbcEncrypt)
+-   [AesCbcDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesCbcDecrypt)
+-   [AesCtrCrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesCtrCrypt)
+-   [AesCfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesCfbEncrypt)
+-   [AesCfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesCfbDecrypt)
+-   [AesOfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesOfbEncrypt)
+-   [AesOfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#AesOfbDecrypt)
+-   [Base64StdEncode](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#Base64StdEncode)
+-   [Base64StdDecode](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#Base64StdDecode)
+-   [DesEcbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesEcbEncrypt)
+-   [DesEcbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesEcbDecrypt)
+-   [DesCbcEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesCbcEncrypt)
+-   [DesCbcDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesCbcDecrypt)
+-   [DesCtrCrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesCtrCrypt)
+-   [DesCfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesCfbEncrypt)
+-   [DesCfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesCfbDecrypt)
+-   [DesOfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesOfbEncrypt)
+-   [DesOfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#DesOfbDecrypt)
+-   [HmacMd5](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#HmacMd5)
+-   [HmacSha1](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#HmacSha1)
+-   [HmacSha256](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#HmacSha256)
+-   [HmacSha512](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#HmacSha512)
+-   [Md5String](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#Md5String)
+-   [Md5File](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#Md5File)
+-   [Sha1](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#Sha1)
+-   [Sha256](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#Sha256)
+-   [Sha512](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#Sha512)
+-   [GenerateRsaKey](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#GenerateRsaKey)
+-   [RsaEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#RsaEncrypt)
+-   [RsaDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor.md#RsaDecrypt)

 ### 6. Datetime package supports date and time format and compare.

-
 ```go
 import "github.com/duke-git/lancet/v2/datetime"
 ```
+
 #### Function list:
- [AddDay](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#AddDay)
- [AddHour](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#AddHour)
- [AddMinute](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#AddMinute)
- [BeginOfMinute](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfMinute)
- [BeginOfHour](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfHour)
- [BeginOfDay](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfDay)
- [BeginOfWeek](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfWeek)
- [BeginOfMonth](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfMonth)
- [BeginOfYear](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfYear)
- [EndOfMinute](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfMinute)
- [EndOfHour](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfHour)
- [EndOfDay](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfDay)
- [EndOfWeek](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfWeek)
- [EndOfMonth](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfMonth)
- [EndOfYear](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfYear)
- [GetNowDate](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#GetNowDate)
- [GetNowTime](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#GetNowTime)
- [GetNowDateTime](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#GetNowDateTime)
- [GetZeroHourTimestamp](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#GetZeroHourTimestamp)
- [GetNightTimestamp](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#GetNightTimestamp)
- [FormatTimeToStr](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#FormatTimeToStr)
- [FormatStrToTime](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#FormatStrToTime)
- [NewUnix](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#NewUnix)
- [NewUnixNow](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#NewUnixNow)
- [NewFormat](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#NewFormat)
- [NewISO8601](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#NewISO8601)
- [ToUnix](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#ToUnix)
- [ToFormat](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#ToFormat)
- [ToFormatForTpl](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#ToFormatForTpl)
- [ToIso8601](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#ToIso8601)
-

+-   [AddDay](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#AddDay)
+-   [AddHour](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#AddHour)
+-   [AddMinute](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#AddMinute)
+-   [BeginOfMinute](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfMinute)
+-   [BeginOfHour](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfHour)
+-   [BeginOfDay](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfDay)
+-   [BeginOfWeek](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfWeek)
+-   [BeginOfMonth](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfMonth)
+-   [BeginOfYear](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfYear)
+-   [EndOfMinute](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfMinute)
+-   [EndOfHour](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfHour)
+-   [EndOfDay](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfDay)
+-   [EndOfWeek](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfWeek)
+-   [EndOfMonth](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfMonth)
+-   [EndOfYear](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfYear)
+-   [GetNowDate](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#GetNowDate)
+-   [GetNowTime](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#GetNowTime)
+-   [GetNowDateTime](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#GetNowDateTime)
+-   [GetZeroHourTimestamp](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#GetZeroHourTimestamp)
+-   [GetNightTimestamp](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#GetNightTimestamp)
+-   [FormatTimeToStr](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#FormatTimeToStr)
+-   [FormatStrToTime](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#FormatStrToTime)
+-   [NewUnix](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#NewUnix)
+-   [NewUnixNow](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#NewUnixNow)
+-   [NewFormat](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#NewFormat)
+-   [NewISO8601](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#NewISO8601)
+-   [ToUnix](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#ToUnix)
+-   [ToFormat](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#ToFormat)
+-   [ToFormatForTpl](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#ToFormatForTpl)
+-   [ToIso8601](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#ToIso8601)

 ### 7. Datastructure package constains some common data structure. eg. list, linklist, stack, queue, set, tree, graph.

-
 ```go
 import list "github.com/duke-git/lancet/v2/datastructure/list"
 import link "github.com/duke-git/lancet/v2/datastructure/link"
@@ -238,16 +248,17 @@ import tree "github.com/duke-git/lancet/v2/datastructure/tree"
 import heap "github.com/duke-git/lancet/v2/datastructure/heap"
 import hashmap "github.com/duke-git/lancet/v2/datastructure/hashmap"
 ```
-#### Function list:
- [List](https://github.com/duke-git/lancet/blob/main/docs/datastructure/list.md)
- [Linklist](https://github.com/duke-git/lancet/blob/main/docs/datastructure/linklist.md)
- [Stack](https://github.com/duke-git/lancet/blob/main/docs/datastructure/stack.md)
- [Queue](https://github.com/duke-git/lancet/blob/main/docs/datastructure/queue.md)
- [Set](https://github.com/duke-git/lancet/blob/main/docs/datastructure/set.md)
- [Tree](https://github.com/duke-git/lancet/blob/main/docs/datastructure/tree.md)
- [Heap](https://github.com/duke-git/lancet/blob/main/docs/datastructure/heap.md)
- [HashMap](https://github.com/duke-git/lancet/blob/main/docs/datastructure/hashmap.md)

+#### Function list:
+
+-   [List](https://github.com/duke-git/lancet/blob/main/docs/datastructure/list.md)
+-   [Linklist](https://github.com/duke-git/lancet/blob/main/docs/datastructure/linklist.md)
+-   [Stack](https://github.com/duke-git/lancet/blob/main/docs/datastructure/stack.md)
+-   [Queue](https://github.com/duke-git/lancet/blob/main/docs/datastructure/queue.md)
+-   [Set](https://github.com/duke-git/lancet/blob/main/docs/datastructure/set.md)
+-   [Tree](https://github.com/duke-git/lancet/blob/main/docs/datastructure/tree.md)
+-   [Heap](https://github.com/duke-git/lancet/blob/main/docs/datastructure/heap.md)
+-   [HashMap](https://github.com/duke-git/lancet/blob/main/docs/datastructure/hashmap.md)

 ### 8. Fileutil package implements some basic functions for file operations.

@@ -257,29 +268,31 @@ import "github.com/duke-git/lancet/v2/fileutil"

 #### Function list：

- [ClearFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#ClearFile)
- [CreateFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#CreateFile)
- [CreateDir](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#CreateDir)
- [CopyFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#CopyFile)
- [FileMode](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#FileMode)
- [MiMeType](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#MiMeType)
- [IsExist](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#IsExist)
- [IsLink](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#IsLink)
- [IsDir](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#IsDir)
- [ListFileNames](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#ListFileNames)
- [RemoveFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#RemoveFile)
- [ReadFileToString](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#ReadFileToString)
- [ReadFileByLine](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#ReadFileByLine)
- [Zip](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#Zip)
- [UnZip](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#UnZip)
+-   [ClearFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#ClearFile)
+-   [CreateFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#CreateFile)
+-   [CreateDir](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#CreateDir)
+-   [CopyFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#CopyFile)
+-   [FileMode](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#FileMode)
+-   [MiMeType](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#MiMeType)
+-   [IsExist](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#IsExist)
+-   [IsLink](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#IsLink)
+-   [IsDir](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#IsDir)
+-   [ListFileNames](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#ListFileNames)
+-   [RemoveFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#RemoveFile)
+-   [ReadFileToString](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#ReadFileToString)
+-   [ReadFileByLine](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#ReadFileByLine)
+-   [Zip](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#Zip)
+-   [UnZip](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#UnZip)

 ### 9. Formatter contains some functions for data formatting.

 ```go
 import "github.com/duke-git/lancet/v2/formatter"
 ```
+
 #### Function list:
- [Comma](https://github.com/duke-git/lancet/blob/main/docs/formatter.md#Comma)
+
+-   [Comma](https://github.com/duke-git/lancet/blob/main/docs/formatter.md#Comma)

 ### 10. Function package can control the flow of function execution and support part of functional programming

@@ -288,14 +301,15 @@ import "github.com/duke-git/lancet/v2/function"
 ```

 #### Function list:
- [After](https://github.com/duke-git/lancet/blob/main/docs/function.md#After)
- [Before](https://github.com/duke-git/lancet/blob/main/docs/function.md#Before)
- [Curry](https://github.com/duke-git/lancet/blob/main/docs/function.md#Curry)
- [Compose](https://github.com/duke-git/lancet/blob/main/docs/function.md#Compose)
- [Debounced](https://github.com/duke-git/lancet/blob/main/docs/function.md#Debounced)
- [Delay](https://github.com/duke-git/lancet/blob/main/docs/function.md#Delay)
- [Watcher](https://github.com/duke-git/lancet/blob/main/docs/function.md#Watcher)

+-   [After](https://github.com/duke-git/lancet/blob/main/docs/function.md#After)
+-   [Before](https://github.com/duke-git/lancet/blob/main/docs/function.md#Before)
+-   [Curry](https://github.com/duke-git/lancet/blob/main/docs/function.md#Curry)
+-   [Compose](https://github.com/duke-git/lancet/blob/main/docs/function.md#Compose)
+-   [Debounced](https://github.com/duke-git/lancet/blob/main/docs/function.md#Debounced)
+-   [Delay](https://github.com/duke-git/lancet/blob/main/docs/function.md#Delay)
+-   [Pipeline](https://github.com/duke-git/lancet/blob/main/docs/function.md#Pipeline)
+-   [Watcher](https://github.com/duke-git/lancet/blob/main/docs/function.md#Watcher)

 ### 11. Maputil package includes some functions to manipulate map.

@@ -304,15 +318,15 @@ import "github.com/duke-git/lancet/v2/maputil"
 ```

 #### Function list:
- [ForEach](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#ForEach)
- [Filter](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#Filter)
- [Intersect](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#Intersect)
- [Keys](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#Keys)
- [Merge](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#Merge)
- [Minus](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#Minus)
- [Values](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#Values)
- [IsDisjoint](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#IsDisjoint)

+-   [ForEach](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#ForEach)
+-   [Filter](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#Filter)
+-   [Intersect](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#Intersect)
+-   [Keys](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#Keys)
+-   [Merge](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#Merge)
+-   [Minus](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#Minus)
+-   [Values](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#Values)
+-   [IsDisjoint](https://github.com/duke-git/lancet/blob/main/docs/maputil.md#IsDisjoint)

 ### 12. Mathutil package implements some functions for math calculation.

@@ -321,19 +335,19 @@ import "github.com/duke-git/lancet/v2/mathutil"
 ```

 #### Function list:
- [Average](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Average)
- [Exponent](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Exponent)
- [Fibonacci](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Fibonacci)
- [Factorial](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Factorial)
- [Max](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Max)
- [MaxBy](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#MaxBy)
- [Min](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Min)
- [MinBy](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#MinBy)
- [Percent](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Percent)
- [RoundToFloat](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#RoundToFloat)
- [RoundToString](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#RoundToString)
- [TruncRound](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#TruncRound)

+-   [Average](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Average)
+-   [Exponent](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Exponent)
+-   [Fibonacci](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Fibonacci)
+-   [Factorial](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Factorial)
+-   [Max](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Max)
+-   [MaxBy](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#MaxBy)
+-   [Min](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Min)
+-   [MinBy](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#MinBy)
+-   [Percent](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#Percent)
+-   [RoundToFloat](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#RoundToFloat)
+-   [RoundToString](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#RoundToString)
+-   [TruncRound](https://github.com/duke-git/lancet/blob/main/docs/mathutil.md#TruncRound)

 ### 13. Netutil package contains functions to get net information and send http request.

@@ -342,27 +356,28 @@ import "github.com/duke-git/lancet/v2/netutil"
 ```

 #### Function list:
- [ConvertMapToQueryString](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#ConvertMapToQueryString)
- [EncodeUrl](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#EncodeUrl)
- [GetInternalIp](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#GetInternalIp)
- [GetIps](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#GetIps)
- [GetMacAddrs](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#GetMacAddrs)
- [GetPublicIpInfo](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#GetPublicIpInfo)
- [GetRequestPublicIp](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#GetRequestPublicIp)
- [IsPublicIP](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#IsPublicIP)
- [IsInternalIP](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#IsInternalIP)
- [HttpRequest](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#HttpRequest)
- [HttpClient](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#HttpClient)
- [SendRequest](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#SendRequest)
- [DecodeResponse](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#DecodeResponse)
- [StructToUrlValues](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#StructToUrlValues)

- [HttpGet<sup>Deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#HttpGet)
- [HttpDelete<sup>Deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#HttpDelete)
- [HttpPost<sup>Deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#HttpPost)
- [HttpPut<sup>Deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#HttpPut)
- [HttpPatch<sup>Deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#HttpPatch)
- [ParseHttpResponse](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#ParseHttpResponse)
+-   [ConvertMapToQueryString](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#ConvertMapToQueryString)
+-   [EncodeUrl](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#EncodeUrl)
+-   [GetInternalIp](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#GetInternalIp)
+-   [GetIps](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#GetIps)
+-   [GetMacAddrs](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#GetMacAddrs)
+-   [GetPublicIpInfo](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#GetPublicIpInfo)
+-   [GetRequestPublicIp](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#GetRequestPublicIp)
+-   [IsPublicIP](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#IsPublicIP)
+-   [IsInternalIP](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#IsInternalIP)
+-   [HttpRequest](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#HttpRequest)
+-   [HttpClient](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#HttpClient)
+-   [SendRequest](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#SendRequest)
+-   [DecodeResponse](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#DecodeResponse)
+-   [StructToUrlValues](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#StructToUrlValues)
+
+-   [HttpGet<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#HttpGet)
+-   [HttpDelete<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#HttpDelete)
+-   [HttpPost<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#HttpPost)
+-   [HttpPut<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#HttpPut)
+-   [HttpPatch<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#HttpPatch)
+-   [ParseHttpResponse](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#ParseHttpResponse)

 ### 14. Random package implements some basic functions to generate random int and string.

@@ -371,10 +386,15 @@ import "github.com/duke-git/lancet/v2/random"
 ```

 #### Function list:
- [RandBytes](https://github.com/duke-git/lancet/blob/main/docs/random.md#RandBytes)
- [RandInt](https://github.com/duke-git/lancet/blob/main/docs/random.md#RandInt)
- [RandString](https://github.com/duke-git/lancet/blob/main/docs/random.md#RandString)
- [UUIdV4](https://github.com/duke-git/lancet/blob/main/docs/random.md#UUIdV4)
+
+-   [RandBytes](https://github.com/duke-git/lancet/blob/main/docs/random.md#RandBytes)
+-   [RandInt](https://github.com/duke-git/lancet/blob/main/docs/random.md#RandInt)
+-   [RandString](https://github.com/duke-git/lancet/blob/main/docs/random.md#RandString)
+-   [RandUpper](https://github.com/duke-git/lancet/blob/main/docs/random.md#RandUpper)
+-   [RandLower](https://github.com/duke-git/lancet/blob/main/docs/random.md#RandLower)
+-   [RandNumeral](https://github.com/duke-git/lancet/blob/main/docs/random.md#RandNumeral)
+-   [RandNumeralOrLetter](https://github.com/duke-git/lancet/blob/main/docs/random.md#RandNumeralOrLetter)
+-   [UUIdV4](https://github.com/duke-git/lancet/blob/main/docs/random.md#UUIdV4)

 ### 15. Retry package is for executing a function repeatedly until it was successful or canceled by the context.

@@ -383,11 +403,12 @@ import "github.com/duke-git/lancet/v2/retry"
 ```

 #### Function list:
- [Context](https://github.com/duke-git/lancet/blob/main/docs/retry.md#Context)
- [Retry](https://github.com/duke-git/lancet/blob/main/docs/retry.md#Retry)
- [RetryFunc](https://github.com/duke-git/lancet/blob/main/docs/retry.md#RetryFunc)
- [RetryDuration](https://github.com/duke-git/lancet/blob/main/docs/retry.md#RetryDuration)
- [RetryTimes](https://github.com/duke-git/lancet/blob/main/docs/retry.md#RetryTimes)
+
+-   [Context](https://github.com/duke-git/lancet/blob/main/docs/retry.md#Context)
+-   [Retry](https://github.com/duke-git/lancet/blob/main/docs/retry.md#Retry)
+-   [RetryFunc](https://github.com/duke-git/lancet/blob/main/docs/retry.md#RetryFunc)
+-   [RetryDuration](https://github.com/duke-git/lancet/blob/main/docs/retry.md#RetryDuration)
+-   [RetryTimes](https://github.com/duke-git/lancet/blob/main/docs/retry.md#RetryTimes)

 ### 16. Slice contains some functions to manipulate slice.

@@ -396,91 +417,104 @@ import "github.com/duke-git/lancet/v2/slice"
 ```

 #### Function list:
- [AppendIfAbsent](https://github.com/duke-git/lancet/blob/main/docs/slice.md#AppendIfAbsent)
- [Contain](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Contain)
- [ContainSubSlice](https://github.com/duke-git/lancet/blob/main/docs/slice.md#ContainSubSlice)
- [Chunk](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Chunk)
- [Compact](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Compact)
- [Concat](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Concat)
- [Count](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Count)
- [Difference](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Difference)
- [DifferenceBy](https://github.com/duke-git/lancet/blob/main/docs/slice.md#DifferenceBy)
- [DifferenceWith](https://github.com/duke-git/lancet/blob/main/docs/slice.md#DifferenceWith)
- [DeleteAt](https://github.com/duke-git/lancet/blob/main/docs/slice.md#DeleteAt)
- [Drop](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Drop)
- [Equal](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Equal)
- [EqualWith](https://github.com/duke-git/lancet/blob/main/docs/slice.md#EqualWith)
- [Every](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Every)
- [Filter](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Filter)
- [Find](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Find)
- [FindLast](https://github.com/duke-git/lancet/blob/main/docs/slice.md#FindLast)
- [Flatten](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Flatten)
- [FlattenDeep](https://github.com/duke-git/lancet/blob/main/docs/slice.md#FlattenDeep)
- [ForEach](https://github.com/duke-git/lancet/blob/main/docs/slice.md#ForEach)
- [GroupBy](https://github.com/duke-git/lancet/blob/main/docs/slice.md#GroupBy)
- [GroupWith](https://github.com/duke-git/lancet/blob/main/docs/slice.md#GroupWith)
- [IntSlice](https://github.com/duke-git/lancet/blob/main/docs/slice.md#IntSlice)
- [InterfaceSlice](https://github.com/duke-git/lancet/blob/main/docs/slice.md#InterfaceSlice)
- [Intersection](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Intersection)
- [InsertAt](https://github.com/duke-git/lancet/blob/main/docs/slice.md#InsertAt)
- [IndexOf](https://github.com/duke-git/lancet/blob/main/docs/slice.md#IndexOf)
- [LastIndexOf](https://github.com/duke-git/lancet/blob/main/docs/slice.md#LastIndexOf)
- [Map](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Map)
- [Reverse](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Reverse)
- [Reduce](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Reduce)
- [Shuffle](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Shuffle)
- [SortByField](https://github.com/duke-git/lancet/blob/main/docs/slice.md#SortByField)
- [Some](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Some)
- [StringSlice](https://github.com/duke-git/lancet/blob/main/docs/slice.md#StringSlice)
- [SymmetricDifference](https://github.com/duke-git/lancet/blob/main/docs/slice.md#SymmetricDifference)
- [ToSlice](https://github.com/duke-git/lancet/blob/main/docs/slice.md#ToSlice)
- [ToSlicePointer](https://github.com/duke-git/lancet/blob/main/docs/slice.md#ToSlicePointer)
- [Unique](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Unique)
- [UniqueBy](https://github.com/duke-git/lancet/blob/main/docs/slice.md#UniqueBy)
- [Union](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Union)
- [UpdateAt](https://github.com/duke-git/lancet/blob/main/docs/slice.md#UpdateAt)
- [Without](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Without)
+
+-   [AppendIfAbsent](https://github.com/duke-git/lancet/blob/main/docs/slice.md#AppendIfAbsent)
+-   [Contain](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Contain)
+-   [ContainSubSlice](https://github.com/duke-git/lancet/blob/main/docs/slice.md#ContainSubSlice)
+-   [Chunk](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Chunk)
+-   [Compact](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Compact)
+-   [Concat](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Concat)
+-   [Count](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Count)
+-   [CountBy](https://github.com/duke-git/lancet/blob/main/docs/slice.md#CountBy)
+-   [Difference](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Difference)
+-   [DifferenceBy](https://github.com/duke-git/lancet/blob/main/docs/slice.md#DifferenceBy)
+-   [DifferenceWith](https://github.com/duke-git/lancet/blob/main/docs/slice.md#DifferenceWith)
+-   [DeleteAt](https://github.com/duke-git/lancet/blob/main/docs/slice.md#DeleteAt)
+-   [Drop](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Drop)
+-   [Equal](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Equal)
+-   [EqualWith](https://github.com/duke-git/lancet/blob/main/docs/slice.md#EqualWith)
+-   [Every](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Every)
+-   [Filter](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Filter)
+-   [Find](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Find)
+-   [FindLast](https://github.com/duke-git/lancet/blob/main/docs/slice.md#FindLast)
+-   [Flatten](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Flatten)
+-   [FlattenDeep](https://github.com/duke-git/lancet/blob/main/docs/slice.md#FlattenDeep)
+-   [ForEach](https://github.com/duke-git/lancet/blob/main/docs/slice.md#ForEach)
+-   [GroupBy](https://github.com/duke-git/lancet/blob/main/docs/slice.md#GroupBy)
+-   [GroupWith](https://github.com/duke-git/lancet/blob/main/docs/slice.md#GroupWith)
+-   [IntSlice<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/slice.md#IntSlice)
+-   [InterfaceSlice<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/slice.md#InterfaceSlice)
+-   [Intersection](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Intersection)
+-   [InsertAt](https://github.com/duke-git/lancet/blob/main/docs/slice.md#InsertAt)
+-   [IndexOf](https://github.com/duke-git/lancet/blob/main/docs/slice.md#IndexOf)
+-   [LastIndexOf](https://github.com/duke-git/lancet/blob/main/docs/slice.md#LastIndexOf)
+-   [Map](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Map)
+-   [Merge](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Merge)
+-   [Reverse](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Reverse)
+-   [Reduce](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Reduce)
+-   [Replace](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Replace)
+-   [ReplaceAll](https://github.com/duke-git/lancet/blob/main/docs/slice.md#ReplaceAll)
+-   [Repeat](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Repeat)
+-   [Shuffle](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Shuffle)
+-   [Sort](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Sort)
+-   [SortBy](https://github.com/duke-git/lancet/blob/main/docs/slice.md#SortBy)
+-   [SortByField<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/slice.md#SortByField)
+-   [Some](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Some)
+-   [StringSlice<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/slice.md#StringSlice)
+-   [SymmetricDifference](https://github.com/duke-git/lancet/blob/main/docs/slice.md#SymmetricDifference)
+-   [ToSlice](https://github.com/duke-git/lancet/blob/main/docs/slice.md#ToSlice)
+-   [ToSlicePointer](https://github.com/duke-git/lancet/blob/main/docs/slice.md#ToSlicePointer)
+-   [Unique](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Unique)
+-   [UniqueBy](https://github.com/duke-git/lancet/blob/main/docs/slice.md#UniqueBy)
+-   [Union](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Union)
+-   [UnionBy](https://github.com/duke-git/lancet/blob/main/docs/slice.md#UnionBy)
+-   [UpdateAt](https://github.com/duke-git/lancet/blob/main/docs/slice.md#UpdateAt)
+-   [Without](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Without)
+-   [KeyBy](https://github.com/duke-git/lancet/blob/main/docs/slice.md#KeyBy)

 ### 17. Strutil package contains some functions to manipulate string.
+
 ```go
 import "github.com/duke-git/lancet/v2/strutil"
 ```

 #### Function list:

- [After](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#After)
- [AfterLast](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#AfterLast)
- [Before](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#Before)
- [BeforeLast](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#BeforeLast)
- [CamelCase](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#CamelCase)
- [Capitalize](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#Capitalize)
- [IsString](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#IsString)
- [KebabCase](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#KebabCase)
- [LowerFirst](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#LowerFirst)
- [UpperFirst](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#UpperFirst)
- [PadEnd](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#PadEnd)
- [PadStart](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#PadStart)
- [Reverse](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#Reverse)
- [SnakeCase](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#SnakeCase)
- [SplitEx](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#SplitEx)
- [Wrap](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#Wrap)
- [Unwrap](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#Unwrap)
-  
+-   [After](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#After)
+-   [AfterLast](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#AfterLast)
+-   [Before](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#Before)
+-   [BeforeLast](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#BeforeLast)
+-   [CamelCase](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#CamelCase)
+-   [Capitalize](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#Capitalize)
+-   [IsString](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#IsString)
+-   [KebabCase](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#KebabCase)
+-   [LowerFirst](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#LowerFirst)
+-   [UpperFirst](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#UpperFirst)
+-   [PadEnd](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#PadEnd)
+-   [PadStart](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#PadStart)
+-   [Reverse](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#Reverse)
+-   [SnakeCase](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#SnakeCase)
+-   [SplitEx](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#SplitEx)
+-   [Wrap](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#Wrap)
+-   [Unwrap](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#Unwrap)
+
 ### 19. System package contain some functions about os, runtime, shell command.

 ```go
 import "github.com/duke-git/lancet/v2/system"
 ```
+
 #### Function list:
- [IsWindows](https://github.com/duke-git/lancet/blob/main/docs/system.md#IsWindows)
- [IsLinux](https://github.com/duke-git/lancet/blob/main/docs/system.md#IsLinux)
- [IsMac](https://github.com/duke-git/lancet/blob/main/docs/system.md#IsMac)
- [GetOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system.md#GetOsEnv)
- [SetOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system.md#SetOsEnv)
- [RemoveOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system.md#RemoveOsEnv)
- [CompareOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system.md#CompareOsEnv)
- [ExecCommand](https://github.com/duke-git/lancet/blob/main/docs/system.md#ExecCommand)
- [GetOsBits](https://github.com/duke-git/lancet/blob/main/docs/system.md#GetOsBits)
+
+-   [IsWindows](https://github.com/duke-git/lancet/blob/main/docs/system.md#IsWindows)
+-   [IsLinux](https://github.com/duke-git/lancet/blob/main/docs/system.md#IsLinux)
+-   [IsMac](https://github.com/duke-git/lancet/blob/main/docs/system.md#IsMac)
+-   [GetOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system.md#GetOsEnv)
+-   [SetOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system.md#SetOsEnv)
+-   [RemoveOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system.md#RemoveOsEnv)
+-   [CompareOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system.md#CompareOsEnv)
+-   [ExecCommand](https://github.com/duke-git/lancet/blob/main/docs/system.md#ExecCommand)
+-   [GetOsBits](https://github.com/duke-git/lancet/blob/main/docs/system.md#GetOsBits)

 ### 19. Validator package contains some functions for data validation.

@@ -490,41 +524,43 @@ import "github.com/duke-git/lancet/v2/validator"

 #### Function list:

- [ContainChinese](https://github.com/duke-git/lancet/blob/main/docs/validator.md#ContainChinese)
- [ContainLetter](https://github.com/duke-git/lancet/blob/main/docs/validator.md#ContainLetter)
- [ContainLower](https://github.com/duke-git/lancet/blob/main/docs/validator.md#ContainLower)
- [ContainUpper](https://github.com/duke-git/lancet/blob/main/docs/validator.md#ContainUpper)
- [IsAlpha](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsAlpha)
- [IsAllUpper](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsAllUpper)
- [IsAllLower](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsAllLower)
- [IsBase64](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsBase64)
- [IsChineseMobile](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsChineseMobile)
- [IsChineseIdNum](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsChineseIdNum)
- [IsChinesePhone](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsChinesePhone)
- [IsCreditCard](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsCreditCard)
- [IsDns](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsDns)
- [IsEmail](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsEmail)
- [IsEmptyString](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsEmptyString)
- [IsFloatStr](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsFloatStr)
- [IsNumberStr](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsNumberStr)
- [IsJSON](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsJSON)
- [IsRegexMatch](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsRegexMatch)
- [IsIntStr](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsIntStr)
- [IsIp](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsIp)
- [IsIpV4](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsIpV4)
- [IsIpV6](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsIpV6)
- [IsStrongPassword](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsStrongPassword)
- [IsUrl](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsUrl)
- [IsWeakPassword](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsWeakPassword)
- [IsZeroValue](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsZeroValue)
+-   [ContainChinese](https://github.com/duke-git/lancet/blob/main/docs/validator.md#ContainChinese)
+-   [ContainLetter](https://github.com/duke-git/lancet/blob/main/docs/validator.md#ContainLetter)
+-   [ContainLower](https://github.com/duke-git/lancet/blob/main/docs/validator.md#ContainLower)
+-   [ContainUpper](https://github.com/duke-git/lancet/blob/main/docs/validator.md#ContainUpper)
+-   [IsAlpha](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsAlpha)
+-   [IsAllUpper](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsAllUpper)
+-   [IsAllLower](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsAllLower)
+-   [IsBase64](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsBase64)
+-   [IsChineseMobile](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsChineseMobile)
+-   [IsChineseIdNum](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsChineseIdNum)
+-   [IsChinesePhone](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsChinesePhone)
+-   [IsCreditCard](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsCreditCard)
+-   [IsDns](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsDns)
+-   [IsEmail](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsEmail)
+-   [IsEmptyString](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsEmptyString)
+-   [IsFloatStr](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsFloatStr)
+-   [IsNumberStr](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsNumberStr)
+-   [IsJSON](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsJSON)
+-   [IsRegexMatch](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsRegexMatch)
+-   [IsIntStr](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsIntStr)
+-   [IsIp](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsIp)
+-   [IsIpV4](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsIpV4)
+-   [IsIpV6](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsIpV6)
+-   [IsStrongPassword](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsStrongPassword)
+-   [IsUrl](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsUrl)
+-   [IsWeakPassword](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsWeakPassword)
+-   [IsZeroValue](https://github.com/duke-git/lancet/blob/main/docs/validator.md#IsZeroValue)
+
 ### 20. xerror package implements helpers for errors.

 ```go
 import "github.com/duke-git/lancet/v2/xerror"
 ```
+
 #### Function list:
- [Unwrap](https://github.com/duke-git/lancet/blob/main/docs/xerror.md#Unwrap)
-  
+
+-   [Unwrap](https://github.com/duke-git/lancet/blob/main/docs/xerror.md#Unwrap)

 ## How to Contribute

--- a/README_zh-CN.md
+++ b/README_zh-CN.md
@@ -4,12 +4,13 @@
 <br/>

 ![Go version](https://img.shields.io/badge/go-%3E%3Dv1.18-9cf)
-[![Release](https://img.shields.io/badge/release-2.1.7-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-2.1.11-green.svg)](https://github.com/duke-git/lancet/releases)
 [![GoDoc](https://godoc.org/github.com/duke-git/lancet/v2?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet/v2)
 [![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet/v2)](https://goreportcard.com/report/github.com/duke-git/lancet/v2)
 [![test](https://github.com/duke-git/lancet/actions/workflows/codecov.yml/badge.svg?branch=main&event=push)](https://github.com/duke-git/lancet/actions/workflows/codecov.yml)
 [![codecov](https://codecov.io/gh/duke-git/lancet/branch/main/graph/badge.svg?token=FC48T1F078)](https://codecov.io/gh/duke-git/lancet)
 [![License](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/duke-git/lancet/blob/main/LICENSE)
+
 </div>

 <div STYLE="page-break-after: always;"></div>
@@ -17,32 +18,34 @@
    lancet（柳叶刀）是一个全面、高效、可复用的go语言工具函数库。 lancet受到了java apache common包和lodash.js的启发。
 </p>

-简体中文 | [English](./README.md)
-
+简体中文 | [English](./README.md) | [文档](https://uvdream.github.io/lancet-docs)

 ## 特性

- 👏 全面、高效、可复用
- 💪 300+常用go工具函数，支持string、slice、datetime、net、crypt...
- 💅 只依赖go标准库
- 🌍 所有导出函数单元测试覆盖率100%
+-   👏 全面、高效、可复用
+-   💪 300+常用 go 工具函数，支持 string、slice、datetime、net、crypt...
+-   💅 只依赖 go 标准库
+-   🌍 所有导出函数单元测试覆盖率 100%

 ## 安装
-### Note: 
-1. <b>对于使用go1.18及以上的用户，建议安装v2.x.x。 因为v2.x.x用go1.18的泛型重写了大部分函数。</b>
+
+### Note:
+
+1. <b>对于使用 go1.18 及以上的用户，建议安装 v2.x.x。 因为 v2.x.x 用 go1.18 的泛型重写了大部分函数。</b>

 ```go
 go get github.com/duke-git/lancet/v2 //安装v2最新版本v2.x.x
 ```

-2. <b>使用go1.18以下版本的用户，必须安装v1.x.x。目前最新的v1版本是v1.3.2。</b>
+2. <b>使用 go1.18 以下版本的用户，必须安装 v1.x.x。目前最新的 v1 版本是 v1.3.4。</b>
+
 ```go
-go get github.com/duke-git/lancet@v1.3.2 // 使用go1.18以下版本, 必须安装v1.x.x版本
+go get github.com/duke-git/lancet@v1.3.3 // 使用go1.18以下版本, 必须安装v1.x.x版本
 ```

 ## 用法

-lancet是以包的结构组织代码的，使用时需要导入相应的包名。例如：如果使用字符串相关函数，需要导入strutil包:
+lancet 是以包的结构组织代码的，使用时需要导入相应的包名。例如：如果使用字符串相关函数，需要导入 strutil 包:

 ```go
 import "github.com/duke-git/lancet/v2/strutil"
@@ -50,7 +53,7 @@ import "github.com/duke-git/lancet/v2/strutil"

 ## 例子

-此处以字符串工具函数Reverse（逆序字符串）为例，需要导入strutil包:
+此处以字符串工具函数 Reverse（逆序字符串）为例，需要导入 strutil 包:

 ```go
 package main
@@ -67,164 +70,172 @@ func main() {
 }
 ```

-## API文档
+## API 文档
+
 ## [lancet API doc](https://uvdream.github.io/lancet-docs/) 感谢[@UvDream](https://github.com/UvDream)整理
-### 1. algorithm算法包实现一些基本算法。eg. sort, search.
+
+### 1. algorithm 算法包实现一些基本算法。eg. sort, search.

 ```go
 import "github.com/duke-git/lancet/v2/algorithm"
 ```
+
 #### Function list:
- [BubbleSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#BubbleSort)
- [CountSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#CountSort)
- [HeapSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#HeapSort)
- [InsertionSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#InsertionSort)
- [MergeSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#MergeSort)
- [QuickSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#QuickSort)
- [SelectionSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#SelectionSort)
- [ShellSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#ShellSort)
- [BinarySearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#BinarySearch)
- [BinaryIterativeSearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#BinaryIterativeSearch)
- [LinearSearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#LinearSearch)
- [LRUCache](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#LRUCache)

+-   [BubbleSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#BubbleSort)
+-   [CountSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#CountSort)
+-   [HeapSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#HeapSort)
+-   [InsertionSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#InsertionSort)
+-   [MergeSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#MergeSort)
+-   [QuickSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#QuickSort)
+-   [SelectionSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#SelectionSort)
+-   [ShellSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#ShellSort)
+-   [BinarySearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#BinarySearch)
+-   [BinaryIterativeSearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#BinaryIterativeSearch)
+-   [LinearSearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#LinearSearch)
+-   [LRUCache](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#LRUCache)

-### 2. concurrency并发包包含一些支持并发编程的功能。例如：goroutine, channel, async等。
+### 2. concurrency 并发包包含一些支持并发编程的功能。例如：goroutine, channel, async 等。

 ```go
 import "github.com/duke-git/lancet/v2/concurrency"
 ```
+
 #### Function list:
- [NewChannel](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#NewChannel)
- [Bridge](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Bridge)
- [FanIn](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#FanIn)
- [Generate](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Generate)
- [Or](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Or)
- [OrDone](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#OrDone)
- [Repeat](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Repeat)
- [RepeatFn](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#RepeatFn)
- [Take](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Take)
- [Tee](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Tee)

+-   [NewChannel](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#NewChannel)
+-   [Bridge](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Bridge)
+-   [FanIn](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#FanIn)
+-   [Generate](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Generate)
+-   [Or](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Or)
+-   [OrDone](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#OrDone)
+-   [Repeat](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Repeat)
+-   [RepeatFn](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#RepeatFn)
+-   [Take](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Take)
+-   [Tee](https://github.com/duke-git/lancet/blob/main/docs/concurrency_zh-CN.md#Tee)

-### 3. condition条件包含一些用于条件判断的函数。eg. And, Or, TernaryOperator...
+### 3. condition 条件包含一些用于条件判断的函数。eg. And, Or, TernaryOperator...

 ```go
 import "github.com/duke-git/lancet/v2/condition"
 ```
+
 #### Function list:
- [Bool](https://github.com/duke-git/lancet/blob/main/docs/condition_zh-CN.md#Bool)
- [And](https://github.com/duke-git/lancet/blob/main/docs/condition_zh-CN.md#And)
- [Or](https://github.com/duke-git/lancet/blob/main/docs/condition_zh-CN.md#Or)
- [Xor](https://github.com/duke-git/lancet/blob/main/docs/condition_zh-CN.md#Xor)
- [Nor](https://github.com/duke-git/lancet/blob/main/docs/condition_zh-CN.md#Nor)
- [Nand](https://github.com/duke-git/lancet/blob/main/docs/condition_zh-CN.md#Nand)
- [TernaryOperator](https://github.com/duke-git/lancet/blob/main/docs/condition_zh-CN.md#TernaryOperator)
-  
-### 4. convertor转换器包支持一些常见的数据类型转换。
+
+-   [Bool](https://github.com/duke-git/lancet/blob/main/docs/condition_zh-CN.md#Bool)
+-   [And](https://github.com/duke-git/lancet/blob/main/docs/condition_zh-CN.md#And)
+-   [Or](https://github.com/duke-git/lancet/blob/main/docs/condition_zh-CN.md#Or)
+-   [Xor](https://github.com/duke-git/lancet/blob/main/docs/condition_zh-CN.md#Xor)
+-   [Nor](https://github.com/duke-git/lancet/blob/main/docs/condition_zh-CN.md#Nor)
+-   [Nand](https://github.com/duke-git/lancet/blob/main/docs/condition_zh-CN.md#Nand)
+-   [TernaryOperator](https://github.com/duke-git/lancet/blob/main/docs/condition_zh-CN.md#TernaryOperator)
+
+### 4. convertor 转换器包支持一些常见的数据类型转换。

 ```go
 import "github.com/duke-git/lancet/v2/convertor"
 ```
+
 #### 函数列表:
- [ColorHexToRGB](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ColorHexToRGB)
- [ColorRGBToHex](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ColorRGBToHex)
- [ToBool](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToBool)
- [ToBytes](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToBytes)
- [ToChar](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToChar)
- [ToChannel](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToChannel)
- [ToFloat](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToFloat)
- [ToInt](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToInt)
- [ToJson](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToJson)
- [ToMap](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToMap)
- [ToPointer](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToPointer)
- [ToString](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToString)
- [StructToMap](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#StructToMap)
- [MapToSlice](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#MapToSlice)
- [EncodeByte](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#EncodeByte)
- [DecodeByte](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#DecodeByte)
-  
-### 5. cryptor加密包支持数据加密和解密，获取md5，hash值。支持base64, md5, hmac, aes, des, rsa。
+
+-   [ColorHexToRGB](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ColorHexToRGB)
+-   [ColorRGBToHex](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ColorRGBToHex)
+-   [ToBool](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToBool)
+-   [ToBytes](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToBytes)
+-   [ToChar](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToChar)
+-   [ToChannel](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToChannel)
+-   [ToFloat](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToFloat)
+-   [ToInt](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToInt)
+-   [ToJson](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToJson)
+-   [ToMap](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToMap)
+-   [ToPointer](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToPointer)
+-   [ToString](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#ToString)
+-   [StructToMap](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#StructToMap)
+-   [MapToSlice](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#MapToSlice)
+-   [EncodeByte](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#EncodeByte)
+-   [DecodeByte](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#DecodeByte)
+
+### 5. cryptor 加密包支持数据加密和解密，获取 md5，hash 值。支持 base64, md5, hmac, aes, des, rsa。

 ```go
 import "github.com/duke-git/lancet/v2/cryptor"
 ```

 #### 函数列表:
- [AesEcbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesEcbEncrypt)
- [AesEcbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesEcbDecrypt)
- [AesCbcEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesCbcEncrypt)
- [AesCbcDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesCbcDecrypt)
- [AesCtrCrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesCtrCrypt)
- [AesCfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesCfbEncrypt)
- [AesCfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesCfbDecrypt)
- [AesOfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesOfbEncrypt)
- [AesOfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesOfbDecrypt)
- [Base64StdEncode](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#Base64StdEncode)
- [Base64StdDecode](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#Base64StdDecode)
- [DesEcbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesEcbEncrypt)
- [DesEcbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesEcbDecrypt)
- [DesCbcEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesCbcEncrypt)
- [DesCbcDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesCbcDecrypt)
- [DesCtrCrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesCtrCrypt)
- [DesCfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesCfbEncrypt)
- [DesCfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesCfbDecrypt)
- [DesOfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesOfbEncrypt)
- [DesOfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesOfbDecrypt)
- [HmacMd5](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#HmacMd5)
- [HmacSha1](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#HmacSha1)
- [HmacSha256](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#HmacSha256)
- [HmacSha512](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#HmacSha512)
- [Md5String](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#Md5String)
- [Md5File](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#Md5File)
- [Sha1](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#Sha1)
- [Sha256](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#Sha256)
- [Sha512](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#Sha512)
- [GenerateRsaKey](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#GenerateRsaKey)
- [RsaEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#RsaEncrypt)
- [RsaDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#RsaDecrypt)

-### 6. datetime日期时间处理包，格式化日期，比较日期。
+-   [AesEcbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesEcbEncrypt)
+-   [AesEcbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesEcbDecrypt)
+-   [AesCbcEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesCbcEncrypt)
+-   [AesCbcDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesCbcDecrypt)
+-   [AesCtrCrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesCtrCrypt)
+-   [AesCfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesCfbEncrypt)
+-   [AesCfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesCfbDecrypt)
+-   [AesOfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesOfbEncrypt)
+-   [AesOfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#AesOfbDecrypt)
+-   [Base64StdEncode](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#Base64StdEncode)
+-   [Base64StdDecode](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#Base64StdDecode)
+-   [DesEcbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesEcbEncrypt)
+-   [DesEcbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesEcbDecrypt)
+-   [DesCbcEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesCbcEncrypt)
+-   [DesCbcDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesCbcDecrypt)
+-   [DesCtrCrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesCtrCrypt)
+-   [DesCfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesCfbEncrypt)
+-   [DesCfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesCfbDecrypt)
+-   [DesOfbEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesOfbEncrypt)
+-   [DesOfbDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#DesOfbDecrypt)
+-   [HmacMd5](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#HmacMd5)
+-   [HmacSha1](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#HmacSha1)
+-   [HmacSha256](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#HmacSha256)
+-   [HmacSha512](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#HmacSha512)
+-   [Md5String](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#Md5String)
+-   [Md5File](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#Md5File)
+-   [Sha1](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#Sha1)
+-   [Sha256](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#Sha256)
+-   [Sha512](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#Sha512)
+-   [GenerateRsaKey](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#GenerateRsaKey)
+-   [RsaEncrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#RsaEncrypt)
+-   [RsaDecrypt](https://github.com/duke-git/lancet/blob/main/docs/cryptor_zh-CN.md#RsaDecrypt)

+### 6. datetime 日期时间处理包，格式化日期，比较日期。

 ```go
 import "github.com/duke-git/lancet/v2/datetime"
 ```
+
 #### 函数列表:
- [AddDay](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#AddDay)
- [AddHour](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#AddHour)
- [AddMinute](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#AddMinute)
- [BeginOfMinute](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfMinute)
- [BeginOfHour](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfHour)
- [BeginOfDay](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfDay)
- [BeginOfWeek](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfWeek)
- [BeginOfMonth](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfMonth)
- [BeginOfYear](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfYear)
- [EndOfMinute](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfMinute)
- [EndOfHour](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfHour)
- [EndOfDay](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfDay)
- [EndOfWeek](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfWeek)
- [EndOfMonth](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfMonth)
- [EndOfYear](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfYear)
- [GetNowDate](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#GetNowDate)
- [GetNowTime](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#GetNowTime)
- [GetNowDateTime](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#GetNowDateTime)
- [GetZeroHourTimestamp](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#GetZeroHourTimestamp)
- [GetNightTimestamp](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#GetNightTimestamp)
- [FormatTimeToStr](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#FormatTimeToStr)
- [FormatStrToTime](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#FormatStrToTime)
- [NewUnix](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#NewUnix)
- [NewUnixNow](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#NewUnixNow)
- [NewFormat](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#NewFormat)
- [NewISO8601](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#NewISO8601)
- [ToUnix](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#ToUnix)
- [ToFormat](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#ToFormat)
- [ToFormatForTpl](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#ToFormatForTpl)
- [ToIso8601](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#ToIso8601)

+-   [AddDay](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#AddDay)
+-   [AddHour](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#AddHour)
+-   [AddMinute](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#AddMinute)
+-   [BeginOfMinute](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfMinute)
+-   [BeginOfHour](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfHour)
+-   [BeginOfDay](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfDay)
+-   [BeginOfWeek](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfWeek)
+-   [BeginOfMonth](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfMonth)
+-   [BeginOfYear](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#BeginOfYear)
+-   [EndOfMinute](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfMinute)
+-   [EndOfHour](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfHour)
+-   [EndOfDay](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfDay)
+-   [EndOfWeek](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfWeek)
+-   [EndOfMonth](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfMonth)
+-   [EndOfYear](https://github.com/duke-git/lancet/blob/main/docs/datetime.md#EndOfYear)
+-   [GetNowDate](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#GetNowDate)
+-   [GetNowTime](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#GetNowTime)
+-   [GetNowDateTime](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#GetNowDateTime)
+-   [GetZeroHourTimestamp](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#GetZeroHourTimestamp)
+-   [GetNightTimestamp](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#GetNightTimestamp)
+-   [FormatTimeToStr](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#FormatTimeToStr)
+-   [FormatStrToTime](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#FormatStrToTime)
+-   [NewUnix](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#NewUnix)
+-   [NewUnixNow](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#NewUnixNow)
+-   [NewFormat](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#NewFormat)
+-   [NewISO8601](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#NewISO8601)
+-   [ToUnix](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#ToUnix)
+-   [ToFormat](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#ToFormat)
+-   [ToFormatForTpl](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#ToFormatForTpl)
+-   [ToIso8601](https://github.com/duke-git/lancet/blob/main/docs/datetime_zh-CN.md#ToIso8601)

-### 7. datastructure包含一些普通的数据结构实现。例如：list, linklist, stack, queue, set, tree, graph.
-
+### 7. datastructure 包含一些普通的数据结构实现。例如：list, linklist, stack, queue, set, tree, graph.

 ```go
 import list "github.com/duke-git/lancet/v2/datastructure/list"
@@ -236,18 +247,19 @@ import tree "github.com/duke-git/lancet/v2/datastructure/tree"
 import heap "github.com/duke-git/lancet/v2/datastructure/heap"
 import hashmap "github.com/duke-git/lancet/v2/datastructure/hashmap"
 ```
+
 #### Function list:
- [List](https://github.com/duke-git/lancet/blob/main/docs/datastructure/list_zh-CN.md)
- [Linklist](https://github.com/duke-git/lancet/blob/main/docs/datastructure/linklist_zh-CN.md)
- [Stack](https://github.com/duke-git/lancet/blob/main/docs/datastructure/stack_zh-CN.md)
- [Queue](https://github.com/duke-git/lancet/blob/main/docs/datastructure/queue_zh-CN.md)
- [Set](https://github.com/duke-git/lancet/blob/main/docs/datastructure/set_zh-CN.md)
- [Tree](https://github.com/duke-git/lancet/blob/main/docs/datastructure/tree_zh-CN.md)
- [Heap](https://github.com/duke-git/lancet/blob/main/docs/datastructure/heap.md)
- [HashMap](https://github.com/duke-git/lancet/blob/main/docs/datastructure/hashmap.md)

+-   [List](https://github.com/duke-git/lancet/blob/main/docs/datastructure/list_zh-CN.md)
+-   [Linklist](https://github.com/duke-git/lancet/blob/main/docs/datastructure/linklist_zh-CN.md)
+-   [Stack](https://github.com/duke-git/lancet/blob/main/docs/datastructure/stack_zh-CN.md)
+-   [Queue](https://github.com/duke-git/lancet/blob/main/docs/datastructure/queue_zh-CN.md)
+-   [Set](https://github.com/duke-git/lancet/blob/main/docs/datastructure/set_zh-CN.md)
+-   [Tree](https://github.com/duke-git/lancet/blob/main/docs/datastructure/tree_zh-CN.md)
+-   [Heap](https://github.com/duke-git/lancet/blob/main/docs/datastructure/heap.md)
+-   [HashMap](https://github.com/duke-git/lancet/blob/main/docs/datastructure/hashmap.md)

-### 8. fileutil包支持文件基本操作。
+### 8. fileutil 包支持文件基本操作。

 ```go
 import "github.com/duke-git/lancet/v2/fileutil"
@@ -255,189 +267,209 @@ import "github.com/duke-git/lancet/v2/fileutil"

 #### 函数列表：

- [ClearFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#ClearFile)
- [CreateFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#CreateFile)
- [CreateDir](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#CreateDir)
- [CopyFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#CopyFile)
- [FileMode](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#FileMode)
- [MiMeType](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#MiMeType)
- [IsExist](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#IsExist)
- [IsLink](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#IsLink)
- [IsDir](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#IsDir)
- [ListFileNames](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#ListFileNames)
- [RemoveFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#RemoveFile)
- [ReadFileToString](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#ReadFileToString)
- [ReadFileByLine](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#ReadFileByLine)
- [Zip](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#Zip)
- [UnZip](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#UnZip)
+-   [ClearFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#ClearFile)
+-   [CreateFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#CreateFile)
+-   [CreateDir](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#CreateDir)
+-   [CopyFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#CopyFile)
+-   [FileMode](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#FileMode)
+-   [MiMeType](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#MiMeType)
+-   [IsExist](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#IsExist)
+-   [IsLink](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#IsLink)
+-   [IsDir](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#IsDir)
+-   [ListFileNames](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#ListFileNames)
+-   [RemoveFile](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#RemoveFile)
+-   [ReadFileToString](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#ReadFileToString)
+-   [ReadFileByLine](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#ReadFileByLine)
+-   [Zip](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#Zip)
+-   [UnZip](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#UnZip)

-### 9. formatter格式化器包含一些数据格式化处理方法。
+### 9. formatter 格式化器包含一些数据格式化处理方法。

 ```go
 import "github.com/duke-git/lancet/v2/formatter"
 ```
+
 #### 函数列表:
- [Comma](https://github.com/duke-git/lancet/blob/main/docs/formatter_zh-CN.md#Comma)

+-   [Comma](https://github.com/duke-git/lancet/blob/main/docs/formatter_zh-CN.md#Comma)

-### 10. function函数包控制函数执行流程，包含部分函数式编程。
+### 10. function 函数包控制函数执行流程，包含部分函数式编程。

 ```go
 import "github.com/duke-git/lancet/v2/function"
 ```

 #### 函数列表:
- [After](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#After)
- [Before](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Before)
- [Curry](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Curry)
- [Compose](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Compose)
- [Debounced](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Debounced)
- [Delay](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Delay)
- [Watcher](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Watcher)

+-   [After](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#After)
+-   [Before](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Before)
+-   [Curry](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Curry)
+-   [Compose](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Compose)
+-   [Debounced](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Debounced)
+-   [Delay](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Delay)
+-   [Pipeline](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Pipeline)
+-   [Watcher](https://github.com/duke-git/lancet/blob/main/docs/function_zh-CN.md#Watcher)

-### 11. maputil包包括一些操作map的函数.
+### 11. maputil 包包括一些操作 map 的函数.

 ```go
 import "github.com/duke-git/lancet/v2/maputil"
 ```

 #### 函数列表:
- [ForEach](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#ForEach)
- [Filter](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#Filter)
- [Intersect](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#Intersect)
- [Keys](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#Keys)
- [Merge](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#Merge)
- [Minus](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#Minus)
- [Values](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#Values)
- [IsDisjoint](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#IsDisjoint)

-### 12. mathutil包实现了一些数学计算的函数。
+-   [ForEach](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#ForEach)
+-   [Filter](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#Filter)
+-   [Intersect](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#Intersect)
+-   [Keys](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#Keys)
+-   [Merge](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#Merge)
+-   [Minus](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#Minus)
+-   [Values](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#Values)
+-   [IsDisjoint](https://github.com/duke-git/lancet/blob/main/docs/maputil_zh-CN.md#IsDisjoint)
+
+### 12. mathutil 包实现了一些数学计算的函数。

 ```go
 import "github.com/duke-git/lancet/v2/mathutil"
 ```

 #### Function list:
- [Average](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Average)
- [Exponent](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Exponent)
- [Fibonacci](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Fibonacci)
- [Factorial](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Factorial)
- [Max](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Max)
- [MaxBy](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#MaxBy)
- [Min](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Min)
- [MinBy](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#MinBy)
- [Percent](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Percent)
- [RoundToFloat](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#RoundToFloat)
- [RoundToString](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#RoundToString)
- [TruncRound](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#TruncRound)

-### 13. netutil网络包支持获取ip地址，发送http请求。
+-   [Average](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Average)
+-   [Exponent](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Exponent)
+-   [Fibonacci](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Fibonacci)
+-   [Factorial](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Factorial)
+-   [Max](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Max)
+-   [MaxBy](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#MaxBy)
+-   [Min](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Min)
+-   [MinBy](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#MinBy)
+-   [Percent](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#Percent)
+-   [RoundToFloat](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#RoundToFloat)
+-   [RoundToString](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#RoundToString)
+-   [TruncRound](https://github.com/duke-git/lancet/blob/main/docs/mathutil_zh-CN.md#TruncRound)
+
+### 13. netutil 网络包支持获取 ip 地址，发送 http 请求。

 ```go
 import "github.com/duke-git/lancet/v2/netutil"
 ```

 #### 函数列表:
- [ConvertMapToQueryString](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#ConvertMapToQueryString)
- [GetInternalIp](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#GetInternalIp)
- [EncodeUrl](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#EncodeUrl)
- [GetIps](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#GetIps)
- [GetMacAddrs](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#GetMacAddrs)
- [GetPublicIpInfo](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#GetPublicIpInfo)
- [GetRequestPublicIp](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#GetRequestPublicIp)
- [IsPublicIP](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#IsPublicIP)
- [IsInternalIP](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#IsInternalIP)
- [HttpRequest](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#HttpRequest)
- [HttpClient](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#HttpClient)
- [SendRequest](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#SendRequest)
- [DecodeResponse](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#DecodeResponse)
- [StructToUrlValues](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#StructToUrlValues)

- [HttpGet<sup>Deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#HttpGet)
- [HttpDelete<sup>Deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#HttpDelete)
- [HttpPost<sup>Deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#HttpPost)
- [HttpPut<sup>Deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#HttpPut)
- [HttpPatch<sup>Deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#HttpPatch)
- [ParseHttpResponse](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#ParseHttpResponse)
+-   [ConvertMapToQueryString](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#ConvertMapToQueryString)
+-   [GetInternalIp](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#GetInternalIp)
+-   [EncodeUrl](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#EncodeUrl)
+-   [GetIps](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#GetIps)
+-   [GetMacAddrs](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#GetMacAddrs)
+-   [GetPublicIpInfo](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#GetPublicIpInfo)
+-   [GetRequestPublicIp](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#GetRequestPublicIp)
+-   [IsPublicIP](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#IsPublicIP)
+-   [IsInternalIP](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#IsInternalIP)
+-   [HttpRequest](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#HttpRequest)
+-   [HttpClient](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#HttpClient)
+-   [SendRequest](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#SendRequest)
+-   [DecodeResponse](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#DecodeResponse)
+-   [StructToUrlValues](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#StructToUrlValues)

-### 14. random随机数生成器包，可以生成随机[]bytes, int, string。
+-   [HttpGet<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#HttpGet)
+-   [HttpDelete<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#HttpDelete)
+-   [HttpPost<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#HttpPost)
+-   [HttpPut<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#HttpPut)
+-   [HttpPatch<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#HttpPatch)
+-   [ParseHttpResponse](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#ParseHttpResponse)
+
+### 14. random 随机数生成器包，可以生成随机[]bytes, int, string。

 ```go
 import "github.com/duke-git/lancet/v2/random"
 ```

 #### 函数列表:
- [RandBytes](https://github.com/duke-git/lancet/blob/main/docs/random_zh-CN.md#RandBytes)
- [RandInt](https://github.com/duke-git/lancet/blob/main/docs/random_zh-CN.md#RandInt)
- [RandString](https://github.com/duke-git/lancet/blob/main/docs/random_zh-CN.md#RandString)
- [UUIdV4](https://github.com/duke-git/lancet/blob/main/docs/random.md#UUIdV4)
-### 15. retry重试执行函数直到函数运行成功或被context cancel。
+
+-   [RandBytes](https://github.com/duke-git/lancet/blob/main/docs/random_zh-CN.md#RandBytes)
+-   [RandInt](https://github.com/duke-git/lancet/blob/main/docs/random_zh-CN.md#RandInt)
+-   [RandString](https://github.com/duke-git/lancet/blob/main/docs/random_zh-CN.md#RandString)
+-   [RandUpper](https://github.com/duke-git/lancet/blob/main/docs/random_zh-CN.md#RandUpper)
+-   [RandLower](https://github.com/duke-git/lancet/blob/main/docs/random_zh-CN.md#RandLower)
+-   [RandNumeral](https://github.com/duke-git/lancet/blob/main/docs/random_zh-CN.md#RandNumeral)
+-   [RandNumeralOrLetter](https://github.com/duke-git/lancet/blob/main/docs/random_zh-CN.md#RandNumeralOrLetter)
+-   [UUIdV4](https://github.com/duke-git/lancet/blob/main/docs/random.md#UUIdV4)
+
+### 15. retry 重试执行函数直到函数运行成功或被 context cancel。

 ```go
 import "github.com/duke-git/lancet/v2/retry"
 ```

 #### 函数列表:
- [Context](https://github.com/duke-git/lancet/blob/main/docs/retry_zh-CN.md#Context)
- [Retry](https://github.com/duke-git/lancet/blob/main/docs/retry_zh-CN.md#Retry)
- [RetryFunc](https://github.com/duke-git/lancet/blob/main/docs/retry_zh-CN.md#RetryFunc)
- [RetryDuration](https://github.com/duke-git/lancet/blob/main/docs/retry_zh-CN.md#RetryDuration)
- [RetryTimes](https://github.com/duke-git/lancet/blob/main/docs/retry_zh-CN.md#RetryTimes)

+-   [Context](https://github.com/duke-git/lancet/blob/main/docs/retry_zh-CN.md#Context)
+-   [Retry](https://github.com/duke-git/lancet/blob/main/docs/retry_zh-CN.md#Retry)
+-   [RetryFunc](https://github.com/duke-git/lancet/blob/main/docs/retry_zh-CN.md#RetryFunc)
+-   [RetryDuration](https://github.com/duke-git/lancet/blob/main/docs/retry_zh-CN.md#RetryDuration)
+-   [RetryTimes](https://github.com/duke-git/lancet/blob/main/docs/retry_zh-CN.md#RetryTimes)

-### 16. slice包包含操作切片的方法集合。
+### 16. slice 包包含操作切片的方法集合。

 ```go
 import "github.com/duke-git/lancet/v2/slice"
 ```

 #### 函数列表:
- [AppendIfAbsent](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#AppendIfAbsent)
- [Contain](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Contain)
- [ContainSubSlice](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#ContainSubSlice)
- [Chunk](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Chunk)
- [Compact](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Compact)
- [Concat](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Concat)
- [Count](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Count)
- [Difference](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Difference)
- [DifferenceBy](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#DifferenceBy)
- [DifferenceWith](https://github.com/duke-git/lancet/blob/main/docs/slice.md#DifferenceWith)
- [DeleteAt](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#DeleteAt)
- [Drop](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Drop)
- [Every](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Every)
- [Filter](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Filter)
- [Find](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Find)
- [FindLast](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#FindLast)
- [Flatten](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Flatten)
- [FlattenDeep](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#FlattenDeep)
- [ForEach](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#ForEach)
- [GroupBy](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#GroupBy)
- [GroupWith](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#GroupWith)
- [IntSlice](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#IntSlice)
- [InterfaceSlice](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#InterfaceSlice)
- [Intersection](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Intersection)
- [InsertAt](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#InsertAt)
- [IndexOf](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#IndexOf)
- [LastIndexOf](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#LastIndexOf)
- [Map](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Map)
- [Reverse](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Reverse)
- [Reduce](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Reduce)
- [Shuffle](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Shuffle)
- [SortByField](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#SortByField)
- [Some](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Some)
- [StringSlice](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#StringSlice)
- [SymmetricDifference](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#SymmetricDifference)
- [ToSlice](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#ToSlice)
- [ToSlicePointer](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#ToSlicePointer)
- [Unique](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Unique)
- [UniqueBy](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#UniqueBy)
- [Union](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Union)
- [UpdateAt](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#UpdateAt)
- [Without](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Without)

+-   [AppendIfAbsent](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#AppendIfAbsent)
+-   [Contain](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Contain)
+-   [ContainSubSlice](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#ContainSubSlice)
+-   [Chunk](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Chunk)
+-   [Compact](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Compact)
+-   [Concat](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Concat)
+-   [Count](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Count)
+-   [CountBy](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#CountBy)
+-   [Difference](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Difference)
+-   [DifferenceBy](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#DifferenceBy)
+-   [DifferenceWith](https://github.com/duke-git/lancet/blob/main/docs/slice.md#DifferenceWith)
+-   [DeleteAt](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#DeleteAt)
+-   [Drop](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Drop)
+-   [Every](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Every)
+-   [Filter](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Filter)
+-   [Find](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Find)
+-   [FindLast](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#FindLast)
+-   [Flatten](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Flatten)
+-   [FlattenDeep](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#FlattenDeep)
+-   [ForEach](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#ForEach)
+-   [GroupBy](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#GroupBy)
+-   [GroupWith](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#GroupWith)
+-   [IntSlice<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#IntSlice)
+-   [InterfaceSlice<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#InterfaceSlice)
+-   [Intersection](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Intersection)
+-   [InsertAt](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#InsertAt)
+-   [IndexOf](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#IndexOf)
+-   [LastIndexOf](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#LastIndexOf)
+-   [Map](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Map)
+-   [Merge](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Merge)
+-   [Reverse](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Reverse)
+-   [Reduce](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Reduce)
+-   [Replace](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Replace)
+-   [ReplaceAll](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#ReplaceAll)
+-   [Repeat](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Repeat)
+-   [Shuffle](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Shuffle)
+-   [Sort](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Sort)
+-   [SortBy](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#SortBy)
+-   [SortByField<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#SortByField)
+-   [Some](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Some)
+-   [StringSlice<sup>deprecated</sup>](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#StringSlice)
+-   [SymmetricDifference](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#SymmetricDifference)
+-   [ToSlice](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#ToSlice)
+-   [ToSlicePointer](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#ToSlicePointer)
+-   [Unique](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Unique)
+-   [UniqueBy](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#UniqueBy)
+-   [Union](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Union)
+-   [UniqueBy](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#UniqueBy)
+-   [UpdateAt](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#UpdateAt)
+-   [Without](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Without)
+-   [KeyBy](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#KeyBy)

-### 17. strutil包含处理字符串的相关函数。
+### 17. strutil 包含处理字符串的相关函数。

 ```go
 import "github.com/duke-git/lancet/v2/strutil"
@@ -445,91 +477,94 @@ import "github.com/duke-git/lancet/v2/strutil"

 #### 函数列表:

- [After](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#After)
- [AfterLast](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#AfterLast)
- [Before](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#Before)
- [BeforeLast](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#BeforeLast)
- [CamelCase](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#CamelCase)
- [Capitalize](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#Capitalize)
- [IsString](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#IsString)
- [KebabCase](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#KebabCase)
- [LowerFirst](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#LowerFirst)
- [UpperFirst](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#UpperFirst)
- [PadEnd](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#PadEnd)
- [PadStart](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#PadStart)
- [Reverse](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#Reverse)
- [SnakeCase](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#SnakeCase)
- [SplitEx](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#SplitEx)
- [Wrap](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#Wrap)
- [Unwrap](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#Unwrap)
-  
+-   [After](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#After)
+-   [AfterLast](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#AfterLast)
+-   [Before](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#Before)
+-   [BeforeLast](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#BeforeLast)
+-   [CamelCase](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#CamelCase)
+-   [Capitalize](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#Capitalize)
+-   [IsString](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#IsString)
+-   [KebabCase](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#KebabCase)
+-   [LowerFirst](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#LowerFirst)
+-   [UpperFirst](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#UpperFirst)
+-   [PadEnd](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#PadEnd)
+-   [PadStart](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#PadStart)
+-   [Reverse](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#Reverse)
+-   [SnakeCase](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#SnakeCase)
+-   [SplitEx](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#SplitEx)
+-   [Wrap](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#Wrap)
+-   [Unwrap](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#Unwrap)

-### 18. system包含os, runtime, shell command相关函数。
+### 18. system 包含 os, runtime, shell command 相关函数。

 ```go
 import "github.com/duke-git/lancet/v2/system"
 ```

 #### 函数列表:
- [IsWindows](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#IsWindows)
- [IsLinux](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#IsLinux)
- [IsMac](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#IsMac)
- [GetOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#GetOsEnv)
- [SetOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#SetOsEnv)
- [RemoveOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#RemoveOsEnv)
- [CompareOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#CompareOsEnv)
- [ExecCommand](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#ExecCommand)
- [GetOsBits](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#GetOsBits)

-### 19. validator验证器包，包含常用字符串格式验证函数。
+-   [IsWindows](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#IsWindows)
+-   [IsLinux](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#IsLinux)
+-   [IsMac](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#IsMac)
+-   [GetOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#GetOsEnv)
+-   [SetOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#SetOsEnv)
+-   [RemoveOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#RemoveOsEnv)
+-   [CompareOsEnv](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#CompareOsEnv)
+-   [ExecCommand](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#ExecCommand)
+-   [GetOsBits](https://github.com/duke-git/lancet/blob/main/docs/system_zh-CN.md#GetOsBits)
+
+### 19. validator 验证器包，包含常用字符串格式验证函数。

 ```go
 import "github.com/duke-git/lancet/v2/validator"
 ```
+
 #### 函数列表:

- [ContainChinese](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#ContainChinese)
- [ContainLetter](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#ContainLetter)
- [ContainLower](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#ContainLower)
- [ContainUpper](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#ContainUpper)
- [IsAlpha](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsAlpha)
- [IsAllUpper](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsAllUpper)
- [IsAllLower](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsAllLower)
- [IsBase64](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsBase64)
- [IsChineseMobile](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsChineseMobile)
- [IsChineseIdNum](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsChineseIdNum)
- [IsChinesePhone](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsChinesePhone)
- [IsCreditCard](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsCreditCard)
- [IsDns](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsDns)
- [IsEmail](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsEmail)
- [IsEmptyString](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsEmptyString)
- [IsFloatStr](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsFloatStr)
- [IsNumberStr](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsNumberStr)
- [IsJSON](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsJSON)
- [IsRegexMatch](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsRegexMatch)
- [IsIntStr](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsIntStr)
- [IsIp](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsIp)
- [IsIpV4](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsIpV4)
- [IsIpV6](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsIpV6)
- [IsStrongPassword](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsStrongPassword)
- [IsUrl](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsUrl)
- [IsWeakPassword](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsWeakPassword)
- [IsZeroValue](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsZeroValue)
+-   [ContainChinese](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#ContainChinese)
+-   [ContainLetter](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#ContainLetter)
+-   [ContainLower](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#ContainLower)
+-   [ContainUpper](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#ContainUpper)
+-   [IsAlpha](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsAlpha)
+-   [IsAllUpper](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsAllUpper)
+-   [IsAllLower](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsAllLower)
+-   [IsBase64](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsBase64)
+-   [IsChineseMobile](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsChineseMobile)
+-   [IsChineseIdNum](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsChineseIdNum)
+-   [IsChinesePhone](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsChinesePhone)
+-   [IsCreditCard](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsCreditCard)
+-   [IsDns](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsDns)
+-   [IsEmail](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsEmail)
+-   [IsEmptyString](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsEmptyString)
+-   [IsFloatStr](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsFloatStr)
+-   [IsNumberStr](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsNumberStr)
+-   [IsJSON](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsJSON)
+-   [IsRegexMatch](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsRegexMatch)
+-   [IsIntStr](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsIntStr)
+-   [IsIp](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsIp)
+-   [IsIpV4](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsIpV4)
+-   [IsIpV6](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsIpV6)
+-   [IsStrongPassword](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsStrongPassword)
+-   [IsUrl](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsUrl)
+-   [IsWeakPassword](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsWeakPassword)
+-   [IsZeroValue](https://github.com/duke-git/lancet/blob/main/docs/validator_zh-CN.md#IsZeroValue)

-### 20. xerror包实现一些错误处理函数
+### 20. xerror 包实现一些错误处理函数

 ```go
 import "github.com/duke-git/lancet/v2/xerror"
 ```
+
 #### 函数列表:
- [Unwrap](https://github.com/duke-git/lancet/blob/main/docs/xerror_zh-CN.md#Unwrap)
+
+-   [Unwrap](https://github.com/duke-git/lancet/blob/main/docs/xerror_zh-CN.md#Unwrap)

 ## 如何贡献代码

-非常感激任何的代码提交以使lancet的功能越来越强大。创建pull request时请遵守以下规则。
+非常感激任何的代码提交以使 lancet 的功能越来越强大。创建 pull request 时请遵守以下规则。

-1. Fork lancet仓库。
+1. Fork lancet 仓库。
 2. 创建自己的特性分支。
 3. 提交变更。
-4. Push分支。
-5. 创建新的pull request。
+4. Push 分支。
+5. 创建新的 pull request。
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -0,0 +1,15 @@
+# Security Policy
+
+## Supported Versions
+Here is the lancet version and compatibility with go language version.
+
+| Version | Supported         |
+| ------- | ------------------|
+| 2.x.x   | +go v1.18         |
+| 1.x.x   | +go v1.12         |
+
+
+## Reporting a Vulnerability
+
+For now, there is no public website to report a vulnerability, If you find security issue in lancet, you can send it to me via my email `lanliddd.2007@163.com`.
+we can discuss it. I am appreciate if someone can create a public page for reporting vulnerability.
--- a/convertor/convertor.go
+++ b/convertor/convertor.go
@@ -90,34 +90,50 @@ func ToChannel[T any](array []T) <-chan T {
 }

 // ToString convert value to string
+// for number, string, []byte, will convert to string
+// for other type (slice, map, array, struct) will call json.Marshal
 func ToString(value any) string {
-	result := ""
 	if value == nil {
-		return result
+		return ""
 	}

-	v := reflect.ValueOf(value)
-
 	switch value.(type) {
-	case float32, float64:
-		result = strconv.FormatFloat(v.Float(), 'f', -1, 64)
-		return result
-	case int, int8, int16, int32, int64:
-		result = strconv.FormatInt(v.Int(), 10)
-		return result
-	case uint, uint8, uint16, uint32, uint64:
-		result = strconv.FormatUint(v.Uint(), 10)
-		return result
+	case float32:
+		return strconv.FormatFloat(float64(value.(float32)), 'f', -1, 32)
+	case float64:
+		return strconv.FormatFloat(value.(float64), 'f', -1, 64)
+	case int:
+		return strconv.FormatInt(int64(value.(int)), 10)
+	case int8:
+		return strconv.FormatInt(int64(value.(int8)), 10)
+	case int16:
+		return strconv.FormatInt(int64(value.(int16)), 10)
+	case int32:
+		return strconv.FormatInt(int64(value.(int32)), 10)
+	case int64:
+		return strconv.FormatInt(value.(int64), 10)
+	case uint:
+		return strconv.FormatUint(uint64(value.(uint)), 10)
+	case uint8:
+		return strconv.FormatUint(uint64(value.(uint8)), 10)
+	case uint16:
+		return strconv.FormatUint(uint64(value.(uint16)), 10)
+	case uint32:
+		return strconv.FormatUint(uint64(value.(uint32)), 10)
+	case uint64:
+		return strconv.FormatUint(value.(uint64), 10)
 	case string:
-		result = v.String()
-		return result
+		return value.(string)
 	case []byte:
-		result = string(v.Bytes())
-		return result
+		return string(value.([]byte))
 	default:
 		newValue, _ := json.Marshal(value)
-		result = string(newValue)
-		return result
+		return string(newValue)
+
+		// todo: maybe we should't supprt other type convertion
+		// v := reflect.ValueOf(value)
+		// log.Panicf("Unsupported data type: %s ", v.String())
+		// return ""
 	}
 }

--- a/convertor/convertor_test.go
+++ b/convertor/convertor_test.go
@@ -137,9 +137,10 @@ func TestToString(t *testing.T) {
 		"", "",
 		"0", "1", "-1",
 		"123", "123", "123", "123", "123", "123", "123",
-		"12.3", "12.300000190734863",
+		"12.3", "12.3",
 		"true", "false",
-		"[1,2,3]", "{\"a\":1,\"b\":2,\"c\":3}", "{\"Name\":\"TestStruct\"}", "hello"}
+		"[1,2,3]", "{\"a\":1,\"b\":2,\"c\":3}", "{\"Name\":\"TestStruct\"}", "hello",
+	}

 	for i := 0; i < len(cases); i++ {
 		actual := ToString(cases[i])
--- a/datastructure/set/set.go
+++ b/datastructure/set/set.go
@@ -4,22 +4,59 @@ package datastructure
 type Set[T comparable] map[T]struct{}

 // NewSet return a instance of set
-func NewSet[T comparable](values ...T) Set[T] {
+func NewSet[T comparable](items ...T) Set[T] {
 	set := make(Set[T])
-	set.Add(values...)
+	set.Add(items...)
 	return set
 }

-// Add value to set
-func (s Set[T]) Add(values ...T) {
-	for _, v := range values {
+// NewSetFromSlice create a set from slice
+func NewSetFromSlice[T comparable](items []T) Set[T] {
+	set := make(Set[T])
+	for _, item := range items {
+		set.Add(item)
+	}
+	return set
+}
+
+// Add items to set
+func (s Set[T]) Add(items ...T) {
+	for _, v := range items {
 		s[v] = struct{}{}
 	}
 }

-// Contain checks if set contains value or not
-func (s Set[T]) Contain(value T) bool {
-	_, ok := s[value]
+// AddIfNotExist checks if item exists in the set,
+// it adds the item to set and returns true if it does not exist in the set,
+// or else it does nothing and returns false.
+func (s Set[T]) AddIfNotExist(item T) bool {
+	if !s.Contain(item) {
+		if _, ok := s[item]; !ok {
+			s[item] = struct{}{}
+			return true
+		}
+	}
+	return false
+}
+
+// AddIfNotExistBy checks if item exists in the set and pass the `checker` function
+// it adds the item to set and returns true if it does not exists in the set and
+// function `checker` returns true, or else it does nothing and returns false.
+func (s Set[T]) AddIfNotExistBy(item T, checker func(element T) bool) bool {
+	if !s.Contain(item) {
+		if checker(item) {
+			if _, ok := s[item]; !ok {
+				s[item] = struct{}{}
+				return true
+			}
+		}
+	}
+	return false
+}
+
+// Contain checks if set contains item or not
+func (s Set[T]) Contain(item T) bool {
+	_, ok := s[item]
 	return ok
 }

@@ -41,9 +78,9 @@ func (s Set[T]) Clone() Set[T] {
 	return set
 }

-// Delete value of set
-func (s Set[T]) Delete(values ...T) {
-	for _, v := range values {
+// Delete item of set
+func (s Set[T]) Delete(items ...T) {
+	for _, v := range items {
 		delete(s, v)
 	}
 }
@@ -58,7 +95,7 @@ func (s Set[T]) Equal(other Set[T]) bool {
 }

 // Iterate call function by every element of set
-func (s Set[T]) Iterate(fn func(value T)) {
+func (s Set[T]) Iterate(fn func(item T)) {
 	for v := range s {
 		fn(v)
 	}
@@ -76,13 +113,13 @@ func (s Set[T]) Size() int {

 // Values return all values of set
 func (s Set[T]) Values() []T {
-	values := make([]T, 0, 0)
+	result := make([]T, 0, len(s))

 	s.Iterate(func(value T) {
-		values = append(values, value)
+		result = append(result, value)
 	})

-	return values
+	return result
 }

 // Union creates a new set contain all element of set s and other
--- a/datastructure/set/set_test.go
+++ b/datastructure/set/set_test.go
@@ -6,6 +6,19 @@ import (
 	"github.com/duke-git/lancet/v2/internal"
 )

+func TestSet_NewSetFromSlice(t *testing.T) {
+	assert := internal.NewAssert(t, "TestSet_NewSetFromSlice")
+
+	s1 := NewSetFromSlice([]int{1, 2, 2, 3})
+	assert.Equal(3, s1.Size())
+	assert.Equal(true, s1.Contain(1))
+	assert.Equal(true, s1.Contain(2))
+	assert.Equal(true, s1.Contain(3))
+
+	s2 := NewSetFromSlice([]int{})
+	assert.Equal(0, s2.Size())
+}
+
 func TestSet_Add(t *testing.T) {
 	assert := internal.NewAssert(t, "TestSet_Add")

@@ -17,6 +30,38 @@ func TestSet_Add(t *testing.T) {
 	assert.Equal(true, set.Equal(expected))
 }

+func TestSet_AddIfNotExist(t *testing.T) {
+	assert := internal.NewAssert(t, "TestSet_AddIfNotExist")
+
+	set := NewSet[int]()
+	set.Add(1, 2, 3)
+
+	assert.Equal(false, set.AddIfNotExist(1))
+	assert.Equal(true, set.AddIfNotExist(4))
+	assert.Equal(NewSet(1, 2, 3, 4), set)
+}
+
+func TestSet_AddIfNotExistBy(t *testing.T) {
+	assert := internal.NewAssert(t, "TestSet_AddIfNotExistBy")
+
+	set := NewSet[int]()
+	set.Add(1, 2)
+
+	ok := set.AddIfNotExistBy(3, func(val int) bool {
+		return val%2 != 0
+	})
+
+	notOk := set.AddIfNotExistBy(4, func(val int) bool {
+		return val%2 != 0
+	})
+
+	assert.Equal(true, ok)
+	assert.Equal(false, notOk)
+
+	assert.Equal(true, set.Contain(3))
+	assert.Equal(false, set.Contain(4))
+}
+
 func TestSet_Contain(t *testing.T) {
 	assert := internal.NewAssert(t, "TestSet_Contain")

--- a/docs/algorithm.md
+++ b/docs/algorithm.md
@@ -21,6 +21,7 @@ import (
 <div STYLE="page-break-after: always;"></div>

 ## Index
+
 - [BubbleSort](#BubbleSort)
 - [InsertionSort](#InsertionSort)
 - [SelectionSort](#SelectionSort)
@@ -31,7 +32,6 @@ import (
 - [CountSort](#CountSort)
 - [BinarySearch](#BinarySearch)
 - [BinaryIterativeSearch](#BinaryIterativeSearch)
-
 - [LinearSearch](#LinearSearch)
 - [LRUCache](#LRUCache)

--- a/docs/algorithm_zh-CN.md
+++ b/docs/algorithm_zh-CN.md
@@ -29,7 +29,6 @@ import (
 - [QuickSort](#QuickSort)
 - [HeapSort](#HeapSort)
 - [MergeSort](#MergeSort)
-
 - [CountSort](#CountSort)
 - [BinarySearch](#BinarySearch)
 - [BinaryIterativeSearch](#BinaryIterativeSearch)
--- a/docs/convertor.md
+++ b/docs/convertor.md
@@ -25,7 +25,6 @@ import (
 - [ToBytes](#ToBytes)
 - [ToChar](#ToChar)
 - [ToChannel](#ToChannel)
-
 - [ToFloat](#ToFloat)
 - [ToInt](#ToInt)
 - [ToJson](#ToJson)
@@ -395,6 +394,32 @@ func main() {
 ```


+### <span id="ToString">ToString</span>
+
+<p>ToString convert value to string, for number, string, []byte, will convert to string. For other type (slice, map, array, struct) will call json.Marshal</p>
+
+<b>Signature:</b>
+
+```go
+func ToString(value any) string
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/convertor"
+)
+
+func main() {
+    fmt.Printf("%q", convertor.ToString(1)) //"1"
+    fmt.Printf("%q", convertor.ToString(1.1)) //"1.1"
+    fmt.Printf("%q", convertor.ToString([]int{1, 2, 3})) //"[1,2,3]"
+}
+```
+

 ### <span id="StructToMap">StructToMap</span>

--- a/docs/convertor_zh-CN.md
+++ b/docs/convertor_zh-CN.md
@@ -27,7 +27,6 @@ import (
 - [ToBytes](#ToBytes)
 - [ToChar](#ToChar)
 - [ToChannel](#ToChannel)
-
 - [ToFloat](#ToFloat)
 - [ToInt](#ToInt)
 - [ToJson](#ToJson)
@@ -401,7 +400,7 @@ func main() {

 ### <span id="ToString">ToString</span>

-<p>将interface转成字符串</p>
+<p>将值转换为字符串，对于数字、字符串、[]byte，将转换为字符串。 对于其他类型（切片、映射、数组、结构）将调用 json.Marshal</p>

 <b>函数签名:</b>

--- a/docs/cryptor.md
+++ b/docs/cryptor.md
@@ -47,7 +47,6 @@ import (
 - [HmacSha1](#HmacSha1)
 - [HmacSha256](#HmacSha256)
 - [HmacSha512](#HmacSha512)
-
 - [Md5String](#Md5String)
 - [Md5File](#Md5File)
 - [Sha1](#Sha1)
--- a/docs/cryptor_zh-CN.md
+++ b/docs/cryptor_zh-CN.md
@@ -33,7 +33,6 @@ import (
 - [AesOfbDecrypt](#AesOfbDecrypt)
 - [Base64StdEncode](#Base64StdEncode)
 - [Base64StdDecode](#Base64StdDecode)
-
 - [DesEcbEncrypt](#DesEcbEncrypt)
 - [DesEcbDecrypt](#DesEcbDecrypt)
 - [DesCbcEncrypt](#DesCbcEncrypt)
@@ -43,7 +42,6 @@ import (
 - [DesCfbDecrypt](#DesCfbDecrypt)
 - [DesOfbEncrypt](#DesOfbEncrypt)
 - [DesOfbDecrypt](#DesOfbDecrypt)
-
 - [HmacMd5](#HmacMd5)
 - [HmacSha1](#HmacSha1)
 - [HmacSha256](#HmacSha256)
--- a/docs/datastructure/set.md
+++ b/docs/datastructure/set.md
@@ -22,8 +22,11 @@ import (
 ## Index

 - [NewSet](#NewSet)
+- [NewSetFromSlice](#NewSetFromSlice)
 - [Values](#Values)
 - [Add](#Add)
+- [AddIfNotExist](#AddIfNotExist)
+- [AddIfNotExistBy](#AddIfNotExistBy)
 - [Delete](#Delete)
 - [Contain](#Contain)
 - [ContainAll](#ContainAll)
@@ -34,7 +37,6 @@ import (
 - [IsEmpty](#IsEmpty)
 - [Union](#Union)
 - [Intersection](#Intersection)
-
 - [SymmetricDifference](#SymmetricDifference)
 - [Minus](#Minus)

@@ -45,13 +47,13 @@ import (
 ## Documentation

 ### <span id="NewSet">NewSet</span>
-<p>Make a Set instance</p>
+<p>Create a set instance</p>

 <b>Signature:</b>

 ```go
 type Set[T comparable] map[T]bool
-func NewSet[T comparable](values ...T) Set[T]
+func NewSet[T comparable](items ...T) Set[T]
 ```
 <b>Example:</b>

@@ -70,6 +72,30 @@ func main() {
 ```


+### <span id="NewSetFromSlice">NewSetFromSlice</span>
+<p>Create a set from slice</p>
+
+<b>Signature:</b>
+
+```go
+func NewSetFromSlice[T comparable](items []T) Set[T]
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    set "github.com/duke-git/lancet/v2/datastructure/set"
+)
+
+func main() {
+    st := set.NewSetFromSlice([]int{1, 2, 2, 3})
+    fmt.Println(st.Values()) //1,2,3
+}
+```
+


 ### <span id="Values">Values</span>
@@ -100,12 +126,12 @@ func main() {


 ### <span id="Add">Add</span>
-<p>Add value to set</p>
+<p>Add items to set</p>

 <b>Signature:</b>

 ```go
-func (s Set[T]) Add(values ...T)
+func (s Set[T]) Add(items ...T)
 ```
 <b>Example:</b>

@@ -126,14 +152,83 @@ func main() {
 ```


-
-### <span id="Delete">Delete</span>
-<p>Delete value in set</p>
+### <span id="AddIfNotExist">AddIfNotExist</span>
+<p>AddIfNotExist checks if item exists in the set, it adds the item to set and returns true if it does not exist in the set, or else it does nothing and returns false.</p>

 <b>Signature:</b>

 ```go
-func (s Set[T]) Delete(values ...T)
+func (s Set[T]) AddIfNotExist(item T) bool
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    set "github.com/duke-git/lancet/v2/datastructure/set"
+)
+
+func main() {
+    st := set.NewSet[int]()
+    st.Add(1, 2, 3)
+
+    r1 := st.AddIfNotExist(1)
+	r2 := st.AddIfNotExist(4)
+
+    fmt.Println(r1) // false
+    fmt.Println(r2) // true
+    fmt.Println(st.Values()) // 1,2,3,4
+}
+```
+
+
+### <span id="AddIfNotExistBy">AddIfNotExistBy</span>
+<p>AddIfNotExistBy checks if item exists in the set and pass the `checker` function it adds the item to set and returns true if it does not exists in the set and function `checker` returns true, or else it does nothing and returns false.</p>
+
+<b>Signature:</b>
+
+```go
+func (s Set[T]) AddIfNotExistBy(item T, checker func(element T) bool) bool
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    set "github.com/duke-git/lancet/v2/datastructure/set"
+)
+
+func main() {
+    st := set.NewSet[int]()
+    st.Add(1, 2)
+
+	ok := st.AddIfNotExistBy(3, func(val int) bool {
+		return val%2 != 0
+	})
+    fmt.Println(ok) // true
+
+
+	notOk := st.AddIfNotExistBy(4, func(val int) bool {
+		return val%2 != 0
+	})
+    fmt.Println(notOk) // false
+    
+    fmt.Println(st.Values()) // 1, 2, 3
+}
+```
+
+
+### <span id="Delete">Delete</span>
+<p>Delete item in set</p>
+
+<b>Signature:</b>
+
+```go
+func (s Set[T]) Delete(items ...T)
 ```
 <b>Example:</b>

@@ -157,12 +252,12 @@ func main() {


 ### <span id="Contain">Contain</span>
-<p>Check if value is in set or not</p>
+<p>Check if item is in set or not</p>

 <b>Signature:</b>

 ```go
-func (s Set[T]) Contain(value T) bool
+func (s Set[T]) Contain(item T) bool
 ```
 <b>Example:</b>

@@ -309,7 +404,7 @@ func main() {
 <b>Signature:</b>

 ```go
-func (s Set[T]) Iterate(fn func(value T))
+func (s Set[T]) Iterate(fn func(item T))
 ```
 <b>Example:</b>

@@ -324,8 +419,8 @@ import (
 func main() {
    set1 := set.NewSet(1, 2, 3)
    arr := []int{}
-    set.Iterate(func(value int) {
-        arr = append(arr, value)
+    set.Iterate(func(item int) {
+        arr = append(arr, item)
    })

    fmt.Println(arr) //1,2,3
--- a/docs/datastructure/set_zh-CN.md
+++ b/docs/datastructure/set_zh-CN.md
@@ -22,8 +22,11 @@ import (
 ## 目录

 - [NewSet](#NewSet)
+- [NewSetFromSlice](#NewSetFromSlice)
 - [Values](#Values)
 - [Add](#Add)
+- [AddIfNotExist](#AddIfNotExist)
+- [AddIfNotExistBy](#AddIfNotExistBy)
 - [Delete](#Delete)
 - [Contain](#Contain)
 - [ContainAll](#ContainAll)
@@ -34,7 +37,6 @@ import (
 - [IsEmpty](#IsEmpty)
 - [Union](#Union)
 - [Intersection](#Intersection)
-
 - [SymmetricDifference](#SymmetricDifference)
 - [Minus](#Minus)

@@ -51,7 +53,7 @@ import (

 ```go
 type Set[T comparable] map[T]bool
-func NewSet[T comparable](values ...T) Set[T]
+func NewSet[T comparable](items ...T) Set[T]
 ```
 <b>例子:</b>

@@ -71,6 +73,31 @@ func main() {



+### <span id="NewSetFromSlice">NewSetFromSlice</span>
+<p>基于切片创建集合</p>
+
+<b>函数签名:</b>
+
+```go
+func NewSetFromSlice[T comparable](items []T) Set[T]
+```
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    set "github.com/duke-git/lancet/v2/datastructure/set"
+)
+
+func main() {
+    st := set.NewSetFromSlice([]int{1, 2, 2, 3})
+    fmt.Println(st.Values()) //1,2,3
+}
+```
+
+

 ### <span id="Values">Values</span>
 <p>获取集合中所有元素的切片</p>
@@ -105,7 +132,7 @@ func main() {
 <b>函数签名:</b>

 ```go
-func (s Set[T]) Add(values ...T)
+func (s Set[T]) Add(items ...T)
 ```
 <b>例子:</b>

@@ -126,6 +153,76 @@ func main() {
 ```


+### <span id="AddIfNotExist">AddIfNotExist</span>
+<p>如果集合中不存在元素，则添加该元素返回true, 如果集合中存在元素, 不做任何操作，返回false</p>
+
+<b>函数签名:</b>
+
+```go
+func (s Set[T]) AddIfNotExist(item T) bool
+```
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    set "github.com/duke-git/lancet/v2/datastructure/set"
+)
+
+func main() {
+    st := set.NewSet[int]()
+    st.Add(1, 2, 3)
+
+    r1 := st.AddIfNotExist(1)
+	r2 := st.AddIfNotExist(4)
+
+    fmt.Println(r1) // false
+    fmt.Println(r2) // true
+    fmt.Println(st.Values()) // 1,2,3,4
+}
+```
+
+
+### <span id="AddIfNotExistBy">AddIfNotExistBy</span>
+<p>根据checker函数判断元素是否在集合中，如果集合中不存在元素且checker返回true，则添加该元素返回true, 否则不做任何操作，返回false</p>
+
+<b>函数签名:</b>
+
+```go
+func (s Set[T]) AddIfNotExistBy(item T, checker func(element T) bool) bool
+```
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    set "github.com/duke-git/lancet/v2/datastructure/set"
+)
+
+func main() {
+    st := set.NewSet[int]()
+    st.Add(1, 2)
+
+	ok := st.AddIfNotExistBy(3, func(val int) bool {
+		return val%2 != 0
+	})
+    fmt.Println(ok) // true
+
+
+	notOk := st.AddIfNotExistBy(4, func(val int) bool {
+		return val%2 != 0
+	})
+    fmt.Println(notOk) // false
+    
+    fmt.Println(st.Values()) // 1, 2, 3
+}
+```
+
+

 ### <span id="Delete">Delete</span>
 <p>删除集合中元素</p>
@@ -133,7 +230,7 @@ func main() {
 <b>函数签名:</b>

 ```go
-func (s Set[T]) Delete(values ...T)
+func (s Set[T]) Delete(items ...T)
 ```
 <b>例子:</b>

@@ -162,7 +259,7 @@ func main() {
 <b>函数签名:</b>

 ```go
-func (s Set[T]) Contain(value T) bool
+func (s Set[T]) Contain(item T) bool
 ```
 <b>例子:</b>

@@ -309,7 +406,7 @@ func main() {
 <b>函数签名:</b>

 ```go
-func (s Set[T]) Iterate(fn func(value T))
+func (s Set[T]) Iterate(fn func(item T))
 ```
 <b>例子:</b>

@@ -324,8 +421,8 @@ import (
 func main() {
    set1 := set.NewSet(1, 2, 3)
    arr := []int{}
-    set.Iterate(func(value int) {
-        arr = append(arr, value)
+    set.Iterate(func(item int) {
+        arr = append(arr, item)
    })

    fmt.Println(arr) //1,2,3
@@ -420,9 +517,6 @@ func main() {
 ```


-
-
-
 ### <span id="SymmetricDifference">SymmetricDifference</span>
 <p>返回一个集合，其中元素在第一个集合或第二个集合中，且不同时存在于两个集合中</p>

--- a/docs/datastructure/tree.md
+++ b/docs/datastructure/tree.md
@@ -29,7 +29,6 @@ import (
 - [PreOrderTraverse](#BSTree_PreOrderTraverse)
 - [InOrderTraverse](#BSTree_InOrderTraverse)
 - [PostOrderTraverse](#BSTree_PostOrderTraverse)
-  
 - [LevelOrderTraverse](#BSTree_LevelOrderTraverse)
 - [Depth](#BSTree_Depth)
 - [HasSubTree](#BSTree_HasSubTree)
--- a/docs/datastructure/tree_zh-CN.md
+++ b/docs/datastructure/tree_zh-CN.md
@@ -29,7 +29,6 @@ import (
 - [PreOrderTraverse](#BSTree_PreOrderTraverse)
 - [InOrderTraverse](#BSTree_InOrderTraverse)
 - [PostOrderTraverse](#BSTree_PostOrderTraverse)
-  
 - [LevelOrderTraverse](#BSTree_LevelOrderTraverse)
 - [Depth](#BSTree_Depth)
 - [HasSubTree](#BSTree_HasSubTree)
--- a/docs/datetime.md
+++ b/docs/datetime.md
@@ -42,7 +42,6 @@ import (
 - [GetNightTimestamp](#GetNightTimestamp)
 - [FormatTimeToStr](#FormatTimeToStr)
 - [FormatStrToTime](#FormatStrToTime)
-
 - [NewUnixNow](#NewUnixNow)
 - [NewUnix](#NewUnix)
 - [NewFormat](#NewFormat)
@@ -251,7 +250,7 @@ func main() {
 <b>Signature:</b>

 ```go
-func BeginOfWeek(t time.Time) time.Time
+func BeginOfWeek(t time.Time, beginFrom ...time.Weekday) time.Time
 ```
 <b>Example:</b>

@@ -414,7 +413,7 @@ func main() {
 <b>Signature:</b>

 ```go
-func EndOfWeek(t time.Time) time.Time
+func EndOfWeek(t time.Time, endWith ...time.Weekday) time.Time
 ```
 <b>Example:</b>

--- a/docs/datetime_zh-CN.md
+++ b/docs/datetime_zh-CN.md
@@ -41,7 +41,6 @@ import (
 - [GetNightTimestamp](#GetNightTimestamp)
 - [FormatTimeToStr](#FormatTimeToStr)
 - [FormatStrToTime](#FormatStrToTime)
-
 - [NewUnixNow](#NewUnixNow)
 - [NewUnix](#NewUnix)
 - [NewFormat](#NewFormat)
@@ -243,12 +242,12 @@ func main() {


 ### <span id="BeginOfWeek">BeginOfWeek</span>
-<p>返回指定时间的星期开始时间</p>
+<p>返回指定时间的每周开始时间,默认开始时间星期日</p>

 <b>函数签名:</b>

 ```go
-func BeginOfWeek(t time.Time) time.Time
+func BeginOfWeek(t time.Time, beginFrom ...time.Weekday) time.Time
 ```
 <b>例子:</b>

@@ -406,12 +405,12 @@ func main() {


 ### <span id="EndOfWeek">EndOfWeek</span>
-<p>返回指定时间的星期结束时间</p>
+<p>返回指定时间的星期结束时间,默认结束时间星期六</p>

 <b>函数签名:</b>

 ```go
-func EndOfWeek(t time.Time) time.Time
+func EndOfWeek(t time.Time, endWith ...time.Weekday) time.Time
 ```
 <b>例子:</b>

--- a/docs/fileutil.md
+++ b/docs/fileutil.md
@@ -28,7 +28,6 @@ import (
 - [IsExist](#IsExist)
 - [IsLink](#IsLink)
 - [IsDir](#IsDir)
-
 - [ListFileNames](#ListFileNames)
 - [RemoveFile](#RemoveFile)
 - [ReadFileToString](#ReadFileToString)
--- a/docs/fileutil_zh-CN.md
+++ b/docs/fileutil_zh-CN.md
@@ -28,7 +28,6 @@ import (
 - [IsExist](#IsExist)
 - [IsLink](#IsLink)
 - [IsDir](#IsDir)
-
 - [ListFileNames](#ListFileNames)
 - [RemoveFile](#RemoveFile)
 - [ReadFileToString](#ReadFileToString)
--- a/docs/function.md
+++ b/docs/function.md
@@ -26,6 +26,7 @@ import (
 - [Compose](#Compose)
 - [Debounced](#Debounced)
 - [Delay](#Delay)
+- [Pipeline](#Pipeline)
 - [Watcher](#Watcher)

 <div STYLE="page-break-after: always;"></div>
@@ -300,6 +301,43 @@ func main() {
 ```


+### <span id="Pipeline">Pipeline</span>
+
+<p>Pipeline takes a list of functions and returns a function whose param will be passed into
+the functions one by one.</p>
+
+<b>Signature:</b>
+
+```go
+func Pipeline[T any](funcs ...func(T) T) func(T) T
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/function"
+)
+
+func main() {
+    addOne := func(x int) int {
+		return x + 1
+	}
+	double := func(x int) int {
+		return 2 * x
+	}
+	square := func(x int) int {
+		return x * x
+	}
+
+	f := Pipeline(addOne, double, square)
+
+	fmt.Println(f(2)) //36
+}
+```
+

 ### <span id="Watcher">Watcher</span>

--- a/docs/function_zh-CN.md
+++ b/docs/function_zh-CN.md
@@ -26,6 +26,7 @@ import (
 - [Compose](#Compose)
 - [Debounced](#Debounced)
 - [Delay](#Delay)
+- [Pipeline](#Pipeline)
 - [Watcher](#Watcher)

 <div STYLE="page-break-after: always;"></div>
@@ -300,6 +301,44 @@ func main() {



+### <span id="Pipeline">Pipeline</span>
+
+<p>执行函数pipeline.</p>
+
+<b>函数签名:</b>
+
+```go
+func Pipeline[T any](funcs ...func(T) T) func(T) T
+```
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/function"
+)
+
+func main() {
+    addOne := func(x int) int {
+		return x + 1
+	}
+	double := func(x int) int {
+		return 2 * x
+	}
+	square := func(x int) int {
+		return x * x
+	}
+
+	f := Pipeline(addOne, double, square)
+
+	fmt.Println(f(2)) //36
+}
+```
+
+
+
 ### <span id="Watcher">Watcher</span>

 <p>Watcher 用于记录代码执行时间。可以启动/停止/重置手表定时器。获取函数执行的时间。 </p>
--- a/docs/mathutil.md
+++ b/docs/mathutil.md
@@ -28,7 +28,6 @@ import (
 - [MaxBy](#MaxBy)
 - [Min](#Min)
 - [MinBy](#MaxBy)
-
 - [Percent](#Percent)
 - [RoundToFloat](#RoundToFloat)
 - [RoundToString](#RoundToString)
--- a/docs/mathutil_zh-CN.md
+++ b/docs/mathutil_zh-CN.md
@@ -28,7 +28,6 @@ import (
 - [MaxBy](#MaxBy)
 - [Min](#Min)
 - [MinBy](#MaxBy)
-  
 - [Percent](#Percent)
 - [RoundToFloat](#RoundToFloat)
 - [RoundToString](#RoundToString)
--- a/docs/netutil.md
+++ b/docs/netutil.md
@@ -25,7 +25,6 @@ import (
 ## Index
 - [ConvertMapToQueryString](#ConvertMapToQueryString)
 - [EncodeUrl](#EncodeUrl)
-  
 - [GetInternalIp](#GetInternalIp)
 - [GetIps](#GetIps)
 - [GetMacAddrs](#GetMacAddrs)
@@ -38,7 +37,6 @@ import (
 - [SendRequest](#SendRequest)
 - [DecodeResponse](#DecodeResponse)
 - [StructToUrlValues](#StructToUrlValues)
-
 - [HttpGet<sup>Deprecated</sup>](#HttpGet)
 - [HttpDelete<sup>Deprecated</sup>](#HttpDelete)
 - [HttpPost<sup>Deprecated</sup>](#HttpPost)
--- a/docs/netutil_zh-CN.md
+++ b/docs/netutil_zh-CN.md
@@ -30,7 +30,6 @@ import (
 - [GetMacAddrs](#GetMacAddrs)
 - [GetPublicIpInfo](#GetPublicIpInfo)
 - [GetRequestPublicIp](#GetRequestPublicIp)
-
 - [IsPublicIP](#IsPublicIP)
 - [IsInternalIP](#IsInternalIP)
 - [HttpRequest](#HttpRequest)
@@ -38,13 +37,11 @@ import (
 - [SendRequest](#SendRequest)
 - [DecodeResponse](#DecodeResponse)
 - [StructToUrlValues](#StructToUrlValues)
-
 - [HttpGet<sup>Deprecated</sup>](#HttpGet)
 - [HttpDelete<sup>Deprecated</sup>](#HttpDelete)
 - [HttpPost<sup>Deprecated</sup>](#HttpPost)
 - [HttpPut<sup>Deprecated</sup>](#HttpPut)
 - [HttpPatch<sup>Deprecated</sup>](#HttpPatch)
-
 - [ParseHttpResponse](#ParseHttpResponse)

 <div STYLE="page-break-after: always;"></div>
--- a/docs/random.md
+++ b/docs/random.md
@@ -1,16 +1,17 @@
 # Random
+
 Package random implements some basic functions to generate random int and string.

 <div STYLE="page-break-after: always;"></div>

 ## Source:

- [https://github.com/duke-git/lancet/blob/main/random/random.go](https://github.com/duke-git/lancet/blob/main/random/random.go)
-
+-   [https://github.com/duke-git/lancet/blob/main/random/random.go](https://github.com/duke-git/lancet/blob/main/random/random.go)

 <div STYLE="page-break-after: always;"></div>

 ## Usage:
+
 ```go
 import (
    "github.com/duke-git/lancet/v2/random"
@@ -20,17 +21,22 @@ import (
 <div STYLE="page-break-after: always;"></div>

 ## Index
- [RandBytes](#RandBytes)
- [RandInt](#RandInt)
- [RandString](#RandString)
- [UUIdV4](#UUIdV4)
+
+-   [RandBytes](#RandBytes)
+-   [RandInt](#RandInt)
+-   [RandString](#RandString)
+-   [RandUpper](#RandUpper)
+-   [RandLower](#RandLower)
+-   [RandNumeral](#RandNumeral)
+-   [RandNumeralOrLetter](#RandNumeralOrLetter)
+-   [UUIdV4](#UUIdV4)

 <div STYLE="page-break-after: always;"></div>

 ## Documentation

-
 ### <span id="RandBytes">RandBytes</span>
+
 <p>Generate random byte slice.</p>

 <b>Signature:</b>
@@ -38,6 +44,7 @@ import (
 ```go
 func RandBytes(length int) []byte
 ```
+
 <b>Example:</b>

 ```go
@@ -54,8 +61,8 @@ func main() {
 }
 ```

-
 ### <span id="RandInt">RandInt</span>
+
 <p>Generate random int between min and max, may contain min, not max.</p>

 <b>Signature:</b>
@@ -63,6 +70,7 @@ func main() {
 ```go
 func RandInt(min, max int) int
 ```
+
 <b>Example:</b>

 ```go
@@ -79,16 +87,16 @@ func main() {
 }
 ```

+### <span id="RandString">RandString</span>

-
-### <span id="RandString">RandInt</span>
-<p>Generate random given length string.</p>
+<p>Generate random given length string. only contains letter (a-zA-Z)</p>

 <b>Signature:</b>

 ```go
 func RandString(length int) string
 ```
+
 <b>Example:</b>

 ```go
@@ -101,14 +109,116 @@ import (

 func main() {
 	randStr := random.RandString(6)
-	fmt.Println(randStr)
+	fmt.Println(randStr) //pGWsze
 }
 ```

+### <span id="RandUpper">RandUpper</span>

+<p>Generate a random upper case string</p>

+<b>Signature:</b>
+
+```go
+func RandUpper(length int) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/random"
+)
+
+func main() {
+	randStr := random.RandString(6)
+	fmt.Println(randStr) //PACWGF
+}
+```
+
+### <span id="RandLower">RandLower</span>
+
+<p>Generate a random lower case string</p>
+
+<b>Signature:</b>
+
+```go
+func RandLower(length int) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/random"
+)
+
+func main() {
+	randStr := random.RandLower(6)
+	fmt.Println(randStr) //siqbew
+}
+```
+
+### <span id="RandNumeral">RandNumeral</span>
+
+<p>Generate a random numeral string</p>
+
+<b>Signature:</b>
+
+```go
+func RandNumeral(length int) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/random"
+)
+
+func main() {
+	randStr := random.RandNumeral(6)
+	fmt.Println(randStr) //035172
+}
+```
+
+### <span id="RandNumeralOrLetter">RandNumeralOrLetter</span>
+
+<p>generate a random numeral or letter string</p>
+
+<b>Signature:</b>
+
+```go
+func RandNumeralOrLetter(length int) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/random"
+)
+
+func main() {
+	randStr := random.RandNumeralOrLetter(6)
+	fmt.Println(randStr) //0aW7cQ
+}
+```

 ### <span id="UUIdV4">UUIdV4</span>
+
 <p>Generate a random UUID of version 4 according to RFC 4122.</p>

 <b>Signature:</b>
@@ -116,6 +226,7 @@ func main() {
 ```go
 func UUIdV4() (string, error)
 ```
+
 <b>Example:</b>

 ```go
@@ -134,5 +245,3 @@ func main() {
 	fmt.Println(uuid)
 }
 ```
-
-
--- a/docs/random_zh-CN.md
+++ b/docs/random_zh-CN.md
@@ -1,16 +1,17 @@
 # Random
-random随机数生成器包，可以生成随机[]bytes, int, string。
+
+random 随机数生成器包，可以生成随机[]bytes, int, string。

 <div STYLE="page-break-after: always;"></div>

 ## 源码:

- [https://github.com/duke-git/lancet/blob/main/random/random.go](https://github.com/duke-git/lancet/blob/main/random/random.go)
-
+-   [https://github.com/duke-git/lancet/blob/main/random/random.go](https://github.com/duke-git/lancet/blob/main/random/random.go)

 <div STYLE="page-break-after: always;"></div>

 ## 用法:
+
 ```go
 import (
    "github.com/duke-git/lancet/v2/random"
@@ -20,18 +21,22 @@ import (
 <div STYLE="page-break-after: always;"></div>

 ## 目录
- [RandBytes](#RandBytes)
- [RandInt](#RandInt)
- [RandString](#RandString)
- [UUIdV4](#UUIdV4)

+-   [RandBytes](#RandBytes)
+-   [RandInt](#RandInt)
+-   [RandString](#RandString)
+-   [RandUpper](#RandUpper)
+-   [RandLower](#RandLower)
+-   [RandNumeral](#RandNumeral)
+-   [RandNumeralOrLetter](#RandNumeralOrLetter)
+-   [UUIdV4](#UUIdV4)

 <div STYLE="page-break-after: always;"></div>

 ## 文档

-
 ### <span id="RandBytes">RandBytes</span>
+
 <p>生成随机字节切片</p>

 <b>函数签名:</b>
@@ -39,6 +44,7 @@ import (
 ```go
 func RandBytes(length int) []byte
 ```
+
 <b>例子:</b>

 ```go
@@ -55,8 +61,8 @@ func main() {
 }
 ```

-
 ### <span id="RandInt">RandInt</span>
+
 <p>生成随机int, 范围[min, max)</p>

 <b>函数签名:</b>
@@ -64,6 +70,7 @@ func main() {
 ```go
 func RandInt(min, max int) int
 ```
+
 <b>例子:</b>

 ```go
@@ -80,16 +87,16 @@ func main() {
 }
 ```

+### <span id="RandString">RandString</span>

-
-### <span id="RandString">RandInt</span>
-<p>生成随机给定长度的随机字符串</p>
+<p>生成给定长度的随机字符串，只包含字母(a-zA-Z)</p>

 <b>函数签名:</b>

 ```go
 func RandString(length int) string
 ```
+
 <b>例子:</b>

 ```go
@@ -102,13 +109,116 @@ import (

 func main() {
 	randStr := random.RandString(6)
-	fmt.Println(randStr)
+	fmt.Println(randStr) //pGWsze
 }
 ```

+### <span id="RandUpper">RandUpper</span>

+<p>生成给定长度的随机大写字母字符串</p>
+
+<b>函数签名:</b>
+
+```go
+func RandUpper(length int) string
+```
+
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/random"
+)
+
+func main() {
+	randStr := random.RandString(6)
+	fmt.Println(randStr) //PACWGF
+}
+```
+
+### <span id="RandLower">RandLower</span>
+
+<p>生成给定长度的随机小写字母字符串</p>
+
+<b>函数签名:</b>
+
+```go
+func RandLower(length int) string
+```
+
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/random"
+)
+
+func main() {
+	randStr := random.RandLower(6)
+	fmt.Println(randStr) //siqbew
+}
+```
+
+### <span id="RandNumeral">RandNumeral</span>
+
+<p>生成给定长度的随机数字字符串</p>
+
+<b>函数签名:</b>
+
+```go
+func RandNumeral(length int) string
+```
+
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/random"
+)
+
+func main() {
+	randStr := random.RandNumeral(6)
+	fmt.Println(randStr) //035172
+}
+```
+
+### <span id="RandNumeralOrLetter">RandNumeralOrLetter</span>
+
+<p>生成给定长度的随机字符串（数字+字母)</p>
+
+<b>函数签名:</b>
+
+```go
+func RandNumeralOrLetter(length int) string
+```
+
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/random"
+)
+
+func main() {
+	randStr := random.RandNumeralOrLetter(6)
+	fmt.Println(randStr) //0aW7cQ
+}
+```

 ### <span id="UUIdV4">UUIdV4</span>
+
 <p>生成UUID v4字符串</p>

 <b>函数签名:</b>
@@ -116,6 +226,7 @@ func main() {
 ```go
 func UUIdV4() (string, error)
 ```
+
 <b>例子:</b>

 ```go
@@ -134,5 +245,3 @@ func main() {
 	fmt.Println(uuid)
 }
 ```
-
-
--- a/docs/slice.md
+++ b/docs/slice.md
--- a/docs/slice_zh-CN.md
+++ b/docs/slice_zh-CN.md
--- a/docs/strutil.md
+++ b/docs/strutil.md
@@ -36,7 +36,6 @@ import (
 - [SnakeCase](#SnakeCase)
 - [SplitEx](#SplitEx)
 - [Wrap](#Wrap)
-  
 - [Unwrap](#Unwrap)
  

--- a/docs/strutil_zh-CN.md
+++ b/docs/strutil_zh-CN.md
@@ -36,7 +36,6 @@ import (
 - [SnakeCase](#SnakeCase)
 - [SplitEx](#SplitEx)
 - [Wrap](#Wrap)
-  
 - [Unwrap](#Unwrap)
  

--- a/docs/validator.md
+++ b/docs/validator.md
@@ -34,7 +34,6 @@ import (
 - [IsCreditCard](#IsCreditCard)
 - [IsDns](#IsDns)
 - [IsEmail](#IsEmail)
-  
 - [IsEmptyString](#IsEmptyString)
 - [IsFloatStr](#IsFloatStr)
 - [IsNumberStr](#IsNumberStr)
--- a/docs/validator_zh-CN.md
+++ b/docs/validator_zh-CN.md
@@ -34,7 +34,6 @@ import (
 - [IsCreditCard](#IsCreditCard)
 - [IsDns](#IsDns)
 - [IsEmail](#IsEmail)
-  
 - [IsEmptyString](#IsEmptyString)
 - [IsFloatStr](#IsFloatStr)
 - [IsNumberStr](#IsNumberStr)
--- a/fileutil/file.go
+++ b/fileutil/file.go
@@ -8,6 +8,7 @@ import (
 	"archive/zip"
 	"bufio"
 	"errors"
+	"fmt"
 	"io"
 	"io/fs"
 	"io/ioutil"
@@ -213,6 +214,7 @@ func Zip(fpath string, destPath string) error {

 // UnZip unzip the file and save it to destPath
 func UnZip(zipFile string, destPath string) error {
+
 	zipReader, err := zip.OpenReader(zipFile)
 	if err != nil {
 		return err
@@ -220,7 +222,12 @@ func UnZip(zipFile string, destPath string) error {
 	defer zipReader.Close()

 	for _, f := range zipReader.File {
-		path := filepath.Join(destPath, f.Name)
+		//issue#62: fix ZipSlip bug
+		path, err := safeFilepathJoin(destPath, f.Name)
+		if err != nil {
+			return err
+		}
+
 		if f.FileInfo().IsDir() {
 			os.MkdirAll(path, os.ModePerm)
 		} else {
@@ -249,6 +256,17 @@ func UnZip(zipFile string, destPath string) error {
 	return nil
 }

+func safeFilepathJoin(path1, path2 string) (string, error) {
+	relPath, err := filepath.Rel(".", path2)
+	if err != nil || strings.HasPrefix(relPath, "..") {
+		return "", fmt.Errorf("(zipslip) filepath is unsafe %q: %v", path2, err)
+	}
+	if path1 == "" {
+		path1 = "."
+	}
+	return filepath.Join(path1, filepath.Join("/", relPath)), nil
+}
+
 // IsLink checks if a file is symbol link or not
 func IsLink(path string) bool {
 	fi, err := os.Lstat(path)
--- a/function/function.go
+++ b/function/function.go
@@ -113,3 +113,15 @@ func Schedule(d time.Duration, fn any, args ...any) chan bool {

 	return quit
 }
+
+// Pipeline takes a list of functions and returns a function whose param will be passed into
+// the functions one by one.
+func Pipeline[T any](funcs ...func(T) T) func(T) T {
+	return func(arg T) (result T) {
+		result = arg
+		for _, fn := range funcs {
+			result = fn(result)
+		}
+		return
+	}
+}
--- a/function/function_test.go
+++ b/function/function_test.go
@@ -134,3 +134,21 @@ func TestSchedule(t *testing.T) {
 	// expected := []string{"*", "*", "*", "*", "*"}
 	// assert.Equal(expected, res)
 }
+
+func TestPipeline(t *testing.T) {
+	assert := internal.NewAssert(t, "TestPipeline")
+
+	addOne := func(x int) int {
+		return x + 1
+	}
+	double := func(x int) int {
+		return 2 * x
+	}
+	square := func(x int) int {
+		return x * x
+	}
+
+	f := Pipeline(addOne, double, square)
+
+	assert.Equal(36, f(2))
+}
--- a/function/watcher_test.go
+++ b/function/watcher_test.go
@@ -29,9 +29,10 @@ func TestWatcher(t *testing.T) {
 	assert.Equal(int64(0), w.stopTime)
 }

-func longRunningTask() {
-	var slice []int64
+func longRunningTask() []int64 {
+	var data []int64
 	for i := 0; i < 10000000; i++ {
-		slice = append(slice, int64(i))
+		data = append(data, int64(i))
 	}
+	return data
 }
--- a/iterator/iterator.go
+++ b/iterator/iterator.go
@@ -0,0 +1,174 @@
+// Copyright 2022 dudaodong@gmail.com. All rights resulterved.
+// Use of this source code is governed by MIT license
+
+// Package iterator provides a way to iterate over values stored in containers.
+// note:
+// 1. Full feature iterator is complicated, this pacakge is just a experiment to explore how iterators could work in Go.
+// 2. The functionality of this package is very simple and limited, may not meet the actual dev needs.
+// 3. It is currently under development, unstable, and will not be completed for some time in the future.
+// So, based on above factors, you may not use it in production. but, anyone is welcome to improve it.
+// Hope that Go can support iterator in future. see https://github.com/golang/go/discussions/54245 and https://github.com/golang/go/discussions/56413
+package iterator
+
+import "github.com/duke-git/lancet/v2/lancetconstraints"
+
+// Iterator supports iterating over a sequence of values of type `E`.
+type Iterator[T any] interface {
+	// Next checks if there is a next value in the iteration or not
+	HasNext() bool
+	// Next returns the next value in the iteration if there is one,
+	// and reports whether the returned value is valid.
+	// Once Next returns ok==false, the iteration is over,
+	// and all subsequent calls will return ok==false.
+	Next() (item T, ok bool)
+}
+
+// StopIterator is an  interface for stopping Iterator.
+type StopIterator[T any] interface {
+	Iterator[T]
+
+	// Stop indicates that the iterator will no longer be used.
+	// After a call to Stop, future calls to Next may panic.
+	// Stop may be called multiple times;
+	// all calls after the first will have no effect.
+	Stop()
+}
+
+// DeleteIter is an Iter that implements a Delete method.
+type DeleteIterator[T any] interface {
+	Iterator[T]
+
+	// Delete deletes the current iterator element;
+	// that is, the one returned by the last call to Next.
+	// Delete should panic if called before Next or after
+	// Next returns false.
+	Delete()
+}
+
+// SetIterator is an Iter that implements a Set method.
+type SetIterator[T any] interface {
+	Iterator[T]
+
+	// Set replaces the current iterator element with v.
+	// Set should panic if called before Next or after
+	// Next returns false.
+	Set(v T)
+}
+
+// PrevIterator is an iterator with a Prev method.
+type PrevIterator[T any] interface {
+	Iterator[T]
+
+	// Prev moves the iterator to the previous position.
+	// After calling Prev, Next will return the value at
+	// that position in the container. For example, after
+	//   it.Next() returning (v, true)
+	//   it.Prev()
+	// another call to it.Next will again return (v, true).
+	// Calling Prev before calling Next may panic.
+	// Calling Prev after Next returns false will move
+	// to the last element, or, if there are no elements,
+	// to the iterator's initial state.
+	Prev()
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Functions that create an Iterator from some other type.                                       //
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+// FromSlice returns an iterator over a slice of data.
+func FromSlice[T any](slice []T) Iterator[T] {
+	return &sliceIterator[T]{slice: slice, index: -1}
+}
+
+func ToSlice[T any](iter Iterator[T]) []T {
+	result := []T{}
+	for item, ok := iter.Next(); ok; item, ok = iter.Next() {
+		result = append(result, item)
+	}
+	return result
+}
+
+type sliceIterator[T any] struct {
+	slice []T
+	index int
+}
+
+func (iter *sliceIterator[T]) HasNext() bool {
+	return iter.index < len(iter.slice)-1
+}
+
+func (iter *sliceIterator[T]) Next() (T, bool) {
+	iter.index++
+	ok := iter.index >= 0 && iter.index < len(iter.slice)
+	var item T
+	if ok {
+		item = iter.slice[iter.index]
+	}
+	return item, ok
+
+	// if len(iter.slice) == 0 {
+	// 	var zero T
+	// 	return zero, false
+	// }
+	// iter.index++
+	// item := iter.slice[0]
+	// iter.slice = iter.slice[1:]
+	// return item, true
+}
+
+// Prev implements PrevIterator.
+func (iter *sliceIterator[T]) Prev() {
+	if iter.index == -1 {
+		panic("Next function should be called Prev")
+	}
+	if iter.HasNext() {
+		iter.index--
+	} else {
+		iter.index = len(iter.slice) - 1
+	}
+}
+
+// Set implements SetIterator.
+func (iter *sliceIterator[T]) Set(value T) {
+	if iter.index == -1 {
+		panic("Next function should be called Set")
+	}
+	if iter.index >= len(iter.slice) || len(iter.slice) == 0 {
+		panic("No element in current iterator")
+	}
+	iter.slice[iter.index] = value
+}
+
+// FromRange creates a iterator which returns the numeric range between start inclusive and end
+// exclusive by the step size. start should be less than end, step shoud be positive.
+func FromRange[T lancetconstraints.Number](start, end, step T) Iterator[T] {
+	if end < start {
+		panic("RangeIterator: start should be before end")
+	} else if step <= 0 {
+		panic("RangeIterator: step should be positive")
+	}
+
+	return &rangeIterator[T]{start: start, end: end, step: step}
+}
+
+type rangeIterator[T lancetconstraints.Number] struct {
+	start, end, step T
+}
+
+func (iter *rangeIterator[T]) HasNext() bool {
+	if iter.start >= iter.end {
+		return false
+	}
+	return true
+}
+
+func (iter *rangeIterator[T]) Next() (T, bool) {
+	if iter.start >= iter.end {
+		var zero T
+		return zero, false
+	}
+	num := iter.start
+	iter.start += iter.step
+	return num, true
+}
--- a/iterator/iterator_test.go
+++ b/iterator/iterator_test.go
@@ -0,0 +1,50 @@
+// Copyright 2022 dudaodong@gmail.com. All rights resulterved.
+// Use of this source code is governed by MIT license
+
+// Package iterator implements some feature of C++ STL iterators
+package iterator
+
+import (
+	"testing"
+
+	"github.com/duke-git/lancet/v2/internal"
+)
+
+func TestSliceIterator(t *testing.T) {
+	assert := internal.NewAssert(t, "TestSliceIterator")
+
+	// HashNext
+	t.Run("slice iterator HasNext: ", func(t *testing.T) {
+		iter1 := FromSlice([]int{1, 2, 3, 4})
+		for {
+			item, _ := iter1.Next()
+
+			if item == 4 {
+				assert.Equal(false, iter1.HasNext())
+				break
+			} else {
+				assert.Equal(true, iter1.HasNext())
+			}
+		}
+
+		iter2 := FromSlice([]int{})
+		assert.Equal(false, iter2.HasNext())
+	})
+
+	//Next
+	t.Run("slice iterator Next: ", func(t *testing.T) {
+		iter1 := FromSlice([]int{1, 2, 3, 4})
+		for i := 0; i < 4; i++ {
+			item, ok := iter1.Next()
+			if !ok {
+				break
+			}
+			assert.Equal(i+1, item)
+		}
+
+		iter2 := FromSlice([]int{})
+		_, ok := iter2.Next()
+		assert.Equal(false, ok)
+	})
+
+}
--- a/iterator/operation.go
+++ b/iterator/operation.go
@@ -0,0 +1,61 @@
+// Copyright 2022 dudaodong@gmail.com. All rights resulterved.
+// Use of this source code is governed by MIT license
+
+// Package iterator provides a way to iterate over values stored in containers.
+// note:
+// 1. Full feature iterator is complicated, this pacakge is just a experiment to explore how iterators could work in Go.
+// 2. The functionality of this package is very simple and limited, may not meet the actual dev needs.
+// 3. It is currently under development, unstable, and will not be completed for some time in the future.
+// So, based on above factors, you may not use it in production. but, anyone is welcome to improve it.
+// Hope that Go can support iterator in future. see https://github.com/golang/go/discussions/54245 and https://github.com/golang/go/discussions/56413
+package iterator
+
+// Map creates a new iterator which applies a function to all items of input iterator.
+func Map[T any, U any](iter Iterator[T], iteratee func(item T) U) Iterator[U] {
+	return &mapIterator[T, U]{
+		iter:     iter,
+		iteratee: iteratee,
+	}
+}
+
+type mapIterator[T any, U any] struct {
+	iter     Iterator[T]
+	iteratee func(T) U
+}
+
+func (mr *mapIterator[T, U]) HasNext() bool {
+	return mr.iter.HasNext()
+}
+
+func (mr *mapIterator[T, U]) Next() (U, bool) {
+	var zero U
+	item, ok := mr.iter.Next()
+	if !ok {
+		return zero, false
+	}
+	return mr.iteratee(item), true
+}
+
+// Filter creates a new iterator that returns only the items that pass specified predicate function.
+func Filter[T any](iter Iterator[T], predicateFunc func(item T) bool) Iterator[T] {
+	return &filterIterator[T]{iter: iter, predicateFunc: predicateFunc}
+}
+
+type filterIterator[T any] struct {
+	iter          Iterator[T]
+	predicateFunc func(T) bool
+}
+
+func (fr *filterIterator[T]) Next() (T, bool) {
+	for item, ok := fr.iter.Next(); ok; item, ok = fr.iter.Next() {
+		if fr.predicateFunc(item) {
+			return item, true
+		}
+	}
+	var zero T
+	return zero, false
+}
+
+func (fr *filterIterator[T]) HasNext() bool {
+	return fr.iter.HasNext()
+}
--- a/lancetconstraints/constraints.go
+++ b/lancetconstraints/constraints.go
@@ -14,5 +14,10 @@ type Comparator interface {

 // Number contains all types of number and uintptr, used for generics constraint
 type Number interface {
-	int | int8 | int16 | int32 | int64 | uint | uint8 | uint16 | uint32 | uint64 | uintptr | float32 | float64
+	~int | ~int8 | ~int16 | ~int32 | ~int64 | ~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr | ~float32 | ~float64
+}
+
+// Ordered is a constraint that permits any ordered type: any type that supports the operators < <= >= >
+type Ordered interface {
+	Number | ~string
 }
--- a/mathutil/mathutil_test.go
+++ b/mathutil/mathutil_test.go
@@ -87,6 +87,9 @@ func TestMax(t *testing.T) {
 	assert.Equal(Max(0, 0), 0)
 	assert.Equal(Max(1, 2, 3), 3)
 	assert.Equal(Max(1.2, 1.4, 1.1, 1.4), 1.4)
+
+	type Integer int
+	assert.Equal(Max(Integer(1), Integer(0)), Integer(1))
 }

 func TestMaxBy(t *testing.T) {
--- a/random/random.go
+++ b/random/random.go
@@ -12,18 +12,12 @@ import (
 	"time"
 )

-// RandString generate random string
-// see https://stackoverflow.com/questions/22892120/how-to-generate-a-random-string-of-a-fixed-length-in-go
-func RandString(length int) string {
-	const letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
-
-	b := make([]byte, length)
-	r := rand.New(rand.NewSource(time.Now().UnixNano()))
-	for i := range b {
-		b[i] = letters[r.Int63()%int64(len(letters))]
-	}
-	return string(b)
-}
+const (
+	NUMERAL       = "0123456789"
+	LOWER_LETTERS = "abcdefghijklmnopqrstuvwxyz"
+	UPPER_LETTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+	LETTERS       = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+)

 // RandInt generate random int between min and max, maybe min,  not be max
 func RandInt(min, max int) int {
@@ -50,6 +44,41 @@ func RandBytes(length int) []byte {
 	return b
 }

+// RandString generate random string
+func RandString(length int) string {
+	return random(LETTERS, length)
+}
+
+// RandUpper generate a random upper case string
+func RandUpper(length int) string {
+	return random(UPPER_LETTERS, length)
+}
+
+// RandLower generate a random lower case string
+func RandLower(length int) string {
+	return random(LOWER_LETTERS, length)
+}
+
+// RandNumeral generate a random numeral string
+func RandNumeral(length int) string {
+	return random(NUMERAL, length)
+}
+
+// RandNumeralOrLetter generate a random numeral or letter string
+func RandNumeralOrLetter(length int) string {
+	return random(NUMERAL+LETTERS, length)
+}
+
+// random generate a random string based on given string range
+func random(s string, length int) string {
+	b := make([]byte, length)
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+	for i := range b {
+		b[i] = s[r.Int63()%int64(len(s))]
+	}
+	return string(b)
+}
+
 // UUIdV4 generate a random UUID of version 4 according to RFC 4122
 func UUIdV4() (string, error) {
 	uuid := make([]byte, 16)
--- a/random/random_test.go
+++ b/random/random_test.go
@@ -19,6 +19,51 @@ func TestRandString(t *testing.T) {
 	assert.Equal(true, reg.MatchString(randStr))
 }

+func TestRandUpper(t *testing.T) {
+	pattern := `^[A-Z]+$`
+	reg := regexp.MustCompile(pattern)
+
+	randStr := RandUpper(6)
+
+	assert := internal.NewAssert(t, "TestRandUpper")
+	assert.Equal(6, len(randStr))
+	assert.Equal(true, reg.MatchString(randStr))
+}
+
+func TestRandLower(t *testing.T) {
+	pattern := `^[a-z]+$`
+	reg := regexp.MustCompile(pattern)
+
+	randStr := RandLower(6)
+
+	assert := internal.NewAssert(t, "TestRandLower")
+	assert.Equal(6, len(randStr))
+	assert.Equal(true, reg.MatchString(randStr))
+}
+
+func TestRandNumeral(t *testing.T) {
+	pattern := `^[0-9]+$`
+	reg := regexp.MustCompile(pattern)
+
+	randStr := RandNumeral(12)
+
+	assert := internal.NewAssert(t, "TestRandNumeral")
+	assert.Equal(12, len(randStr))
+	assert.Equal(true, reg.MatchString(randStr))
+}
+
+func TestRandNumeralOrLetter(t *testing.T) {
+	pattern := `^[0-9a-zA-Z]+$`
+	reg := regexp.MustCompile(pattern)
+
+	randStr := RandNumeralOrLetter(10)
+	t.Log(randStr)
+
+	assert := internal.NewAssert(t, "TestRandNumeralOrLetter")
+	assert.Equal(10, len(randStr))
+	assert.Equal(true, reg.MatchString(randStr))
+}
+
 func TestRandInt(t *testing.T) {
 	assert := internal.NewAssert(t, "TestRandInt")

--- a/slice/slice.go
+++ b/slice/slice.go
@@ -10,22 +10,24 @@ import (
 	"math/rand"
 	"reflect"
 	"sort"
+
+	"github.com/duke-git/lancet/v2/lancetconstraints"
 )

-// Contain check if the value is in the slice or not
-func Contain[T comparable](slice []T, value T) bool {
-	set := make(map[T]struct{}, len(slice))
-	for _, v := range slice {
-		set[v] = struct{}{}
+// Contain check if the target value is in the slice or not
+func Contain[T comparable](slice []T, target T) bool {
+	for _, item := range slice {
+		if item == target {
+			return true
+		}
 	}

-	_, ok := set[value]
-	return ok
+	return false
 }

-// ContainSubSlice check if the slice contain subslice or not
-func ContainSubSlice[T comparable](slice, subslice []T) bool {
-	for _, v := range subslice {
+// ContainSubSlice check if the slice contain a given subslice or not
+func ContainSubSlice[T comparable](slice, subSlice []T) bool {
+	for _, v := range subSlice {
 		if !Contain(slice, v) {
 			return false
 		}
@@ -34,47 +36,35 @@ func ContainSubSlice[T comparable](slice, subslice []T) bool {
 	return true
 }

-// Chunk creates an slice of elements split into groups the length of size.
+// Chunk creates a slice of elements split into groups the length of size
 func Chunk[T any](slice []T, size int) [][]T {
-	var result [][]T
+	result := [][]T{}

 	if len(slice) == 0 || size <= 0 {
 		return result
 	}

-	length := len(slice)
-	if size == 1 || size >= length {
-		for _, v := range slice {
-			var tmp []T
-			tmp = append(tmp, v)
-			result = append(result, tmp)
+	for _, item := range slice {
+		l := len(result)
+		if l == 0 || len(result[l-1]) == size {
+			result = append(result, []T{})
+			l++
 		}
-		return result
-	}

-	// divide slice equally
-	divideNum := length/size + 1
-	for i := 0; i < divideNum; i++ {
-		if i == divideNum-1 {
-			if len(slice[i*size:]) > 0 {
-				result = append(result, slice[i*size:])
-			}
-		} else {
-			result = append(result, slice[i*size:(i+1)*size])
-		}
+		result[l-1] = append(result[l-1], item)
 	}

 	return result
+
 }

 // Compact creates an slice with all falsey values removed. The values false, nil, 0, and "" are falsey
-func Compact[T any](slice []T) []T {
-	result := make([]T, 0, 0)
+func Compact[T comparable](slice []T) []T {
+	var zero T
+
+	result := []T{}
 	for _, v := range slice {
-		if !reflect.DeepEqual(v, nil) &&
-			!reflect.DeepEqual(v, false) &&
-			!reflect.DeepEqual(v, "") &&
-			!reflect.DeepEqual(v, 0) {
+		if v != zero {
 			result = append(result, v)
 		}
 	}
@@ -82,11 +72,11 @@ func Compact[T any](slice []T) []T {
 	return result
 }

-// Concat creates a new slice concatenating slice with any additional slices and/or values.
-func Concat[T any](slice []T, values ...[]T) []T {
+// Concat creates a new slice concatenating slice with any additional slices.
+func Concat[T any](slice []T, slices ...[]T) []T {
 	result := append([]T{}, slice...)

-	for _, v := range values {
+	for _, v := range slices {
 		result = append(result, v...)
 	}

@@ -95,7 +85,8 @@ func Concat[T any](slice []T, values ...[]T) []T {

 // Difference creates an slice of whose element in slice but not in comparedSlice
 func Difference[T comparable](slice, comparedSlice []T) []T {
-	var result []T
+	result := []T{}
+
 	for _, v := range slice {
 		if !Contain(comparedSlice, v) {
 			result = append(result, v)
@@ -112,7 +103,7 @@ func DifferenceBy[T comparable](slice []T, comparedSlice []T, iteratee func(inde
 	orginSliceAfterMap := Map(slice, iteratee)
 	comparedSliceAfterMap := Map(comparedSlice, iteratee)

-	result := make([]T, 0, 0)
+	result := make([]T, 0)
 	for i, v := range orginSliceAfterMap {
 		if !Contain(comparedSliceAfterMap, v) {
 			result = append(result, slice[i])
@@ -123,8 +114,8 @@ func DifferenceBy[T comparable](slice []T, comparedSlice []T, iteratee func(inde
 }

 //DifferenceWith accepts comparator which is invoked to compare elements of slice to values. The order and references of result values are determined by the first slice. The comparator is invoked with two arguments: (arrVal, othVal).
-func DifferenceWith[T any](slice []T, comparedSlice []T, comparator func(value, otherValue T) bool) []T {
-	result := make([]T, 0, 0)
+func DifferenceWith[T any](slice []T, comparedSlice []T, comparator func(item1, item2 T) bool) []T {
+	result := make([]T, 0)

 	getIndex := func(arr []T, item T, comparison func(v1, v2 T) bool) int {
 		index := -1
@@ -168,9 +159,8 @@ func EqualWith[T, U any](slice1 []T, slice2 []U, comparator func(T, U) bool) boo
 		return false
 	}

-	for i, v1 := range slice1 {
-		v2 := slice2[i]
-		if !comparator(v1, v2) {
+	for i, v := range slice1 {
+		if !comparator(v, slice2[i]) {
 			return false
 		}
 	}
@@ -180,76 +170,68 @@ func EqualWith[T, U any](slice1 []T, slice2 []U, comparator func(T, U) bool) boo

 // Every return true if all of the values in the slice pass the predicate function.
 func Every[T any](slice []T, predicate func(index int, item T) bool) bool {
-	if predicate == nil {
-		panic("predicate func is missing")
-	}
-
-	var currentLength int
 	for i, v := range slice {
-		if predicate(i, v) {
-			currentLength++
+		if !predicate(i, v) {
+			return false
 		}
 	}

-	return currentLength == len(slice)
+	return true
 }

 // None return true if all the values in the slice mismatch the criteria
 func None[T any](slice []T, predicate func(index int, item T) bool) bool {
-	if predicate == nil {
-		panic("predicate func is missing")
-	}
-
-	var currentLength int
+	l := 0
 	for i, v := range slice {
 		if !predicate(i, v) {
-			currentLength++
+			l++
 		}
 	}

-	return currentLength == len(slice)
+	return l == len(slice)
 }

 // Some return true if any of the values in the list pass the predicate function.
 func Some[T any](slice []T, predicate func(index int, item T) bool) bool {
-	if predicate == nil {
-		panic("predicate func is missing")
-	}
-
 	for i, v := range slice {
 		if predicate(i, v) {
 			return true
 		}
 	}
+
 	return false
 }

 // Filter iterates over elements of slice, returning an slice of all elements pass the predicate function
 func Filter[T any](slice []T, predicate func(index int, item T) bool) []T {
-	if predicate == nil {
-		panic("predicate func is missing")
-	}
+	result := make([]T, 0)

-	result := make([]T, 0, 0)
 	for i, v := range slice {
 		if predicate(i, v) {
 			result = append(result, v)
 		}
 	}
+
 	return result
 }

-// Count iterates over elements of slice, returns a count of all matched elements
-func Count[T any](slice []T, predicate func(index int, item T) bool) int {
-	if predicate == nil {
-		panic("predicate func is missing")
+// Count returns the number of occurrences of the given item in the slice
+func Count[T comparable](slice []T, item T) int {
+	count := 0
+
+	for _, v := range slice {
+		if item == v {
+			count++
+		}
 	}

-	if len(slice) == 0 {
-		return 0
-	}
+	return count
+}
+
+// CountBy iterates over elements of slice with predicate function, returns the number of all matched elements
+func CountBy[T any](slice []T, predicate func(index int, item T) bool) int {
+	count := 0

-	var count int
 	for i, v := range slice {
 		if predicate(i, v) {
 			count++
@@ -261,10 +243,6 @@ func Count[T any](slice []T, predicate func(index int, item T) bool) int {

 // GroupBy iterate over elements of the slice, each element will be group by criteria, returns two slices
 func GroupBy[T any](slice []T, groupFn func(index int, item T) bool) ([]T, []T) {
-	if groupFn == nil {
-		panic("groupFn func is missing")
-	}
-
 	if len(slice) == 0 {
 		return make([]T, 0), make([]T, 0)
 	}
@@ -285,11 +263,7 @@ func GroupBy[T any](slice []T, groupFn func(index int, item T) bool) ([]T, []T)
 }

 // GroupWith return a map composed of keys generated from the resultults of running each element of slice thru iteratee.
-func GroupWith[T any, U comparable](slice []T, iteratee func(T) U) map[U][]T {
-	if iteratee == nil {
-		panic("iteratee func is missing")
-	}
-
+func GroupWith[T any, U comparable](slice []T, iteratee func(item T) U) map[U][]T {
 	result := make(map[U][]T)

 	for _, v := range slice {
@@ -306,15 +280,8 @@ func GroupWith[T any, U comparable](slice []T, iteratee func(T) U) map[U][]T {
 // Find iterates over elements of slice, returning the first one that passes a truth test on predicate function.
 // If return T is nil then no items matched the predicate func
 func Find[T any](slice []T, predicate func(index int, item T) bool) (*T, bool) {
-	if predicate == nil {
-		panic("predicate func is missing")
-	}
-
-	if len(slice) == 0 {
-		return nil, false
-	}
-
 	index := -1
+
 	for i, v := range slice {
 		if predicate(i, v) {
 			index = i
@@ -332,15 +299,8 @@ func Find[T any](slice []T, predicate func(index int, item T) bool) (*T, bool) {
 // FindLast iterates over elements of slice from end to begin, returning the first one that passes a truth test on predicate function.
 // If return T is nil then no items matched the predicate func
 func FindLast[T any](slice []T, predicate func(index int, item T) bool) (*T, bool) {
-	if predicate == nil {
-		panic("predicate func is missing")
-	}
-
-	if len(slice) == 0 {
-		return nil, false
-	}
-
 	index := -1
+
 	for i := len(slice) - 1; i >= 0; i-- {
 		if predicate(i, slice[i]) {
 			index = i
@@ -386,8 +346,11 @@ func Flatten(slice any) any {
 func FlattenDeep(slice any) any {
 	sv := sliceValue(slice)
 	st := sliceElemType(sv.Type())
+
 	tmp := reflect.MakeSlice(reflect.SliceOf(st), 0, 0)
+
 	result := flattenRecursive(sv, tmp)
+
 	return result.Interface()
 }

@@ -408,10 +371,6 @@ func flattenRecursive(value reflect.Value, result reflect.Value) reflect.Value {

 // ForEach iterates over elements of slice and invokes function for each element
 func ForEach[T any](slice []T, iteratee func(index int, item T)) {
-	if iteratee == nil {
-		panic("iteratee func is missing")
-	}
-
 	for i, v := range slice {
 		iteratee(i, v)
 	}
@@ -419,11 +378,8 @@ func ForEach[T any](slice []T, iteratee func(index int, item T)) {

 // Map creates an slice of values by running each element of slice thru iteratee function.
 func Map[T any, U any](slice []T, iteratee func(index int, item T) U) []U {
-	if iteratee == nil {
-		panic("iteratee func is missing")
-	}
-
 	result := make([]U, len(slice), cap(slice))
+
 	for i, v := range slice {
 		result[i] = iteratee(i, v)
 	}
@@ -433,17 +389,13 @@ func Map[T any, U any](slice []T, iteratee func(index int, item T) U) []U {

 // Reduce creates an slice of values by running each element of slice thru iteratee function.
 func Reduce[T any](slice []T, iteratee func(index int, item1, item2 T) T, initial T) T {
-	if iteratee == nil {
-		panic("iteratee func is missing")
-	}
-
 	if len(slice) == 0 {
 		return initial
 	}

 	result := iteratee(0, initial, slice[0])

-	tmp := make([]T, 2, 2)
+	tmp := make([]T, 2)
 	for i := 1; i < len(slice); i++ {
 		tmp[0] = result
 		tmp[1] = slice[i]
@@ -453,7 +405,39 @@ func Reduce[T any](slice []T, iteratee func(index int, item1, item2 T) T, initia
 	return result
 }

+// Replace returns a copy of the slice with the first n non-overlapping instances of old replaced by new
+func Replace[T comparable](slice []T, old T, new T, n int) []T {
+	result := make([]T, len(slice))
+	copy(result, slice)
+
+	for i := range result {
+		if result[i] == old && n != 0 {
+			result[i] = new
+			n--
+		}
+	}
+
+	return result
+}
+
+// ReplaceAll returns a copy of the slice with all non-overlapping instances of old replaced by new.
+func ReplaceAll[T comparable](slice []T, old T, new T) []T {
+	return Replace(slice, old, new, -1)
+}
+
+// Repeat creates a slice with length n whose elements are param `item`.
+func Repeat[T any](item T, n int) []T {
+	result := make([]T, n)
+
+	for i := range result {
+		result[i] = item
+	}
+
+	return result
+}
+
 // InterfaceSlice convert param to slice of interface.
+// This function is deprecated, use generics feature of go1.18+ for replacement
 func InterfaceSlice(slice any) []any {
 	sv := sliceValue(slice)
 	if sv.IsNil() {
@@ -469,35 +453,37 @@ func InterfaceSlice(slice any) []any {
 }

 // StringSlice convert param to slice of string.
+// This function is deprecated, use generics feature of go1.18+ for replacement
 func StringSlice(slice any) []string {
 	v := sliceValue(slice)

-	out := make([]string, v.Len())
+	result := make([]string, v.Len())
 	for i := 0; i < v.Len(); i++ {
 		v, ok := v.Index(i).Interface().(string)
 		if !ok {
 			panic("invalid element type")
 		}
-		out[i] = v
+		result[i] = v
 	}

-	return out
+	return result
 }

 // IntSlice convert param to slice of int.
+// This function is deprecated, use generics feature of go1.18+ for replacement
 func IntSlice(slice any) []int {
 	sv := sliceValue(slice)

-	out := make([]int, sv.Len())
+	result := make([]int, sv.Len())
 	for i := 0; i < sv.Len(); i++ {
 		v, ok := sv.Index(i).Interface().(int)
 		if !ok {
 			panic("invalid element type")
 		}
-		out[i] = v
+		result[i] = v
 	}

-	return out
+	return result
 }

 // DeleteAt delete the element of slice from start index to end index - 1.
@@ -522,7 +508,7 @@ func DeleteAt[T any](slice []T, start int, end ...int) []T {
 	}

 	if start == size-1 {
-		slice = append(slice[:start])
+		slice = slice[:start]
 	} else {
 		slice = append(slice[:start], slice[start+1:]...)
 	}
@@ -584,12 +570,8 @@ func UpdateAt[T any](slice []T, index int, value T) []T {

 // Unique remove duplicate elements in slice.
 func Unique[T comparable](slice []T) []T {
-	if len(slice) == 0 {
-		return []T{}
-	}
+	result := []T{}

-	// here no use map filter. if use it, the result slice element order is random, not same as origin slice
-	var result []T
 	for i := 0; i < len(slice); i++ {
 		v := slice[i]
 		skip := true
@@ -609,11 +591,8 @@ func Unique[T comparable](slice []T) []T {

 // UniqueBy call iteratee func with every item of slice, then remove duplicated.
 func UniqueBy[T comparable](slice []T, iteratee func(item T) T) []T {
-	if len(slice) == 0 {
-		return []T{}
-	}
+	result := []T{}

-	var result []T
 	for _, v := range slice {
 		val := iteratee(v)
 		result = append(result, val)
@@ -622,25 +601,53 @@ func UniqueBy[T comparable](slice []T, iteratee func(item T) T) []T {
 	return Unique(result)
 }

-// Union creates a slice of unique values, in order, from all given slices. using == for equality comparisons.
+// Union creates a slice of unique elements, in order, from all given slices.
 func Union[T comparable](slices ...[]T) []T {
-	if len(slices) == 0 {
-		return []T{}
-	}
-
-	// append all slices, then unique it
-	var allElements []T
+	result := []T{}
+	contain := map[T]struct{}{}

 	for _, slice := range slices {
-		for _, v := range slice {
-			allElements = append(allElements, v)
+		for _, item := range slice {
+			if _, ok := contain[item]; !ok {
+				contain[item] = struct{}{}
+				result = append(result, item)
+			}
 		}
 	}

-	return Unique(allElements)
+	return result
 }

-// Intersection creates a slice of unique values that included by all slices.
+// UnionBy is like Union, what's more it accepts iteratee which is invoked for each element of each slice
+func UnionBy[T any, V comparable](predicate func(item T) V, slices ...[]T) []T {
+	result := []T{}
+	contain := map[V]struct{}{}
+
+	for _, slice := range slices {
+		for _, item := range slice {
+			val := predicate(item)
+			if _, ok := contain[val]; !ok {
+				contain[val] = struct{}{}
+				result = append(result, item)
+			}
+		}
+	}
+
+	return result
+}
+
+// Merge all given slices into one slice
+func Merge[T any](slices ...[]T) []T {
+	result := make([]T, 0)
+
+	for _, v := range slices {
+		result = append(result, v...)
+	}
+
+	return result
+}
+
+// Intersection creates a slice of unique elements that included by all slices.
 func Intersection[T comparable](slices ...[]T) []T {
 	if len(slices) == 0 {
 		return []T{}
@@ -649,12 +656,10 @@ func Intersection[T comparable](slices ...[]T) []T {
 		return Unique(slices[0])
 	}

-	var result []T
-
 	reducer := func(sliceA, sliceB []T) []T {
 		hashMap := make(map[T]int)
-		for _, val := range sliceA {
-			hashMap[val] = 1
+		for _, v := range sliceA {
+			hashMap[v] = 1
 		}

 		out := make([]T, 0)
@@ -667,9 +672,9 @@ func Intersection[T comparable](slices ...[]T) []T {
 		return out
 	}

-	result = reducer(slices[0], slices[1])
+	result := reducer(slices[0], slices[1])

-	reduceSlice := make([][]T, 2, 2)
+	reduceSlice := make([][]T, 2)
 	for i := 2; i < len(slices); i++ {
 		reduceSlice[0] = result
 		reduceSlice[1] = slices[i]
@@ -722,9 +727,26 @@ func Shuffle[T any](slice []T) []T {
 	return result
 }

+// Sort sorts a slice of any ordered type(number or string), use quick sort algrithm.
+// default sort order is ascending (asc), if want descending order, set param `sortOrder` to `desc`
+func Sort[T lancetconstraints.Ordered](slice []T, sortOrder ...string) {
+	if len(sortOrder) > 0 && sortOrder[0] == "desc" {
+		quickSort(slice, 0, len(slice)-1, "desc")
+	} else {
+		quickSort(slice, 0, len(slice)-1, "asc")
+	}
+}
+
+// SortBy sorts the slice in ascending order as determined by the less function.
+// This sort is not guaranteed to be stable
+func SortBy[T any](slice []T, less func(a, b T) bool) {
+	quickSortBy(slice, 0, len(slice)-1, less)
+}
+
 // SortByField return sorted slice by field
-// Slice element should be struct, field type should be int, uint, string, or bool
+// slice element should be struct, field type should be int, uint, string, or bool
 // default sortType is ascending (asc), if descending order, set sortType to desc
+// This function is deprecated, use Sort and SortBy for replacement
 func SortByField(slice any, field string, sortType ...string) error {
 	sv := sliceValue(slice)
 	t := sv.Type().Elem()
@@ -794,27 +816,26 @@ func SortByField(slice any, field string, sortType ...string) error {
 	return nil
 }

-// Without creates a slice excluding all given values
-func Without[T comparable](slice []T, values ...T) []T {
-	if len(values) == 0 || len(slice) == 0 {
+// Without creates a slice excluding all given items
+func Without[T comparable](slice []T, items ...T) []T {
+	if len(items) == 0 || len(slice) == 0 {
 		return slice
 	}

-	out := make([]T, 0, len(slice))
+	result := make([]T, 0, len(slice))
 	for _, v := range slice {
-		if !Contain(values, v) {
-			out = append(out, v)
+		if !Contain(items, v) {
+			result = append(result, v)
 		}
 	}

-	return out
+	return result
 }

-// IndexOf returns the index at which the first occurrence of a value is found in a slice or return -1
-// if the value cannot be found.
-func IndexOf[T comparable](slice []T, value T) int {
+// IndexOf returns the index at which the first occurrence of a item is found in a slice or return -1 if the item cannot be found.
+func IndexOf[T comparable](slice []T, item T) int {
 	for i, v := range slice {
-		if v == value {
+		if v == item {
 			return i
 		}
 	}
@@ -822,11 +843,10 @@ func IndexOf[T comparable](slice []T, value T) int {
 	return -1
 }

-// LastIndexOf returns the index at which the last occurrence of a value is found in a slice or return -1
-// if the value cannot be found.
-func LastIndexOf[T comparable](slice []T, value T) int {
+// LastIndexOf returns the index at which the last occurrence of the item is found in a slice or return -1 if the then cannot be found.
+func LastIndexOf[T comparable](slice []T, item T) int {
 	for i := len(slice) - 1; i > 0; i-- {
-		if value == slice[i] {
+		if item == slice[i] {
 			return i
 		}
 	}
@@ -835,27 +855,39 @@ func LastIndexOf[T comparable](slice []T, value T) int {
 }

 // ToSlicePointer returns a pointer to the slices of a variable parameter transformation
-func ToSlicePointer[T any](value ...T) []*T {
-	out := make([]*T, len(value))
-	for i := range value {
-		out[i] = &value[i]
+func ToSlicePointer[T any](items ...T) []*T {
+	result := make([]*T, len(items))
+	for i := range items {
+		result[i] = &items[i]
 	}
-	return out
+
+	return result
 }

 // ToSlice returns a slices of a variable parameter transformation
-func ToSlice[T any](value ...T) []T {
-	out := make([]T, len(value))
-	for i := range value {
-		out[i] = value[i]
-	}
-	return out
+func ToSlice[T any](items ...T) []T {
+	result := make([]T, len(items))
+	copy(result, items)
+
+	return result
 }

-// AppendIfAbsent only absent append the value
-func AppendIfAbsent[T comparable](slice []T, value T) []T {
-	if !Contain(slice, value) {
-		slice = append(slice, value)
+// AppendIfAbsent only absent append the item
+func AppendIfAbsent[T comparable](slice []T, item T) []T {
+	if !Contain(slice, item) {
+		slice = append(slice, item)
 	}
 	return slice
 }
+
+// KeyBy converts a slice to a map based on a callback function
+func KeyBy[T any, U comparable](slice []T, iteratee func(item T) U) map[U]T {
+	result := make(map[U]T, len(slice))
+
+	for _, v := range slice {
+		k := iteratee(v)
+		result[k] = v
+	}
+
+	return result
+}
--- a/slice/slice_internal.go
+++ b/slice/slice_internal.go
@@ -3,6 +3,8 @@ package slice
 import (
 	"fmt"
 	"reflect"
+
+	"github.com/duke-git/lancet/v2/lancetconstraints"
 )

 // sliceValue return the reflect value of a slice
@@ -14,45 +16,6 @@ func sliceValue(slice any) reflect.Value {
 	return v
 }

-// functionValue return the reflect value of a function
-func functionValue(function any) reflect.Value {
-	v := reflect.ValueOf(function)
-	if v.Kind() != reflect.Func {
-		panic(fmt.Sprintf("Invalid function type, value of type %T", function))
-	}
-	return v
-}
-
-// checkSliceCallbackFuncSignature Check func sign :  s :[]type1{} -> func(i int, data type1) type2
-// see https://coolshell.cn/articles/21164.html#%E6%B3%9B%E5%9E%8BMap-Reduce
-func checkSliceCallbackFuncSignature(fn reflect.Value, types ...reflect.Type) bool {
-	//Check it is a function
-	if fn.Kind() != reflect.Func {
-		return false
-	}
-	// NumIn() - returns a function type's input parameter count.
-	// NumOut() - returns a function type's output parameter count.
-	if (fn.Type().NumIn() != len(types)-1) || (fn.Type().NumOut() != 1) {
-		return false
-	}
-	// In() - returns the type of a function type's i'th input parameter.
-	// first input param type should be int
-	if fn.Type().In(0) != reflect.TypeOf(1) {
-		return false
-	}
-	for i := 0; i < len(types)-1; i++ {
-		if fn.Type().In(i) != types[i] {
-			return false
-		}
-	}
-	// Out() - returns the type of a function type's i'th output parameter.
-	outType := types[len(types)-1]
-	if outType != nil && fn.Type().Out(0) != outType {
-		return false
-	}
-	return true
-}
-
 // sliceElemType get slice element type
 func sliceElemType(reflectType reflect.Type) reflect.Type {
 	for {
@@ -63,3 +26,66 @@ func sliceElemType(reflectType reflect.Type) reflect.Type {
 		reflectType = reflectType.Elem()
 	}
 }
+
+func quickSort[T lancetconstraints.Ordered](slice []T, lowIndex, highIndex int, order string) {
+	if lowIndex < highIndex {
+		p := partitionOrderedSlice(slice, lowIndex, highIndex, order)
+		quickSort(slice, lowIndex, p-1, order)
+		quickSort(slice, p+1, highIndex, order)
+	}
+}
+
+// partitionOrderedSlice split ordered slice into two parts for quick sort
+func partitionOrderedSlice[T lancetconstraints.Ordered](slice []T, lowIndex, highIndex int, order string) int {
+	p := slice[highIndex]
+	i := lowIndex
+
+	for j := lowIndex; j < highIndex; j++ {
+		if order == "desc" {
+			if slice[j] > p {
+				swap(slice, i, j)
+				i++
+			}
+		} else {
+			if slice[j] < p {
+				swap(slice, i, j)
+				i++
+			}
+		}
+	}
+
+	swap(slice, i, highIndex)
+
+	return i
+}
+
+func quickSortBy[T any](slice []T, lowIndex, highIndex int, less func(a, b T) bool) {
+	if lowIndex < highIndex {
+		p := partitionAnySlice(slice, lowIndex, highIndex, less)
+		quickSortBy(slice, lowIndex, p-1, less)
+		quickSortBy(slice, p+1, highIndex, less)
+	}
+}
+
+// partitionAnySlice split any slice into two parts for quick sort
+func partitionAnySlice[T any](slice []T, lowIndex, highIndex int, less func(a, b T) bool) int {
+	p := slice[highIndex]
+	i := lowIndex
+
+	for j := lowIndex; j < highIndex; j++ {
+
+		if less(slice[j], p) {
+			swap(slice, i, j)
+			i++
+		}
+	}
+
+	swap(slice, i, highIndex)
+
+	return i
+}
+
+// swap two slice value at index i and j
+func swap[T any](slice []T, i, j int) {
+	slice[i], slice[j] = slice[j], slice[i]
+}
--- a/slice/slice_test.go
+++ b/slice/slice_test.go
@@ -31,6 +31,10 @@ func TestChunk(t *testing.T) {

 	arr := []string{"a", "b", "c", "d", "e"}

+	assert.Equal([][]string{}, Chunk(arr, -1))
+
+	assert.Equal([][]string{}, Chunk(arr, 0))
+
 	r1 := [][]string{{"a"}, {"b"}, {"c"}, {"d"}, {"e"}}
 	assert.Equal(r1, Chunk(arr, 1))

@@ -43,8 +47,11 @@ func TestChunk(t *testing.T) {
 	r4 := [][]string{{"a", "b", "c", "d"}, {"e"}}
 	assert.Equal(r4, Chunk(arr, 4))

-	r5 := [][]string{{"a"}, {"b"}, {"c"}, {"d"}, {"e"}}
+	r5 := [][]string{{"a", "b", "c", "d", "e"}}
 	assert.Equal(r5, Chunk(arr, 5))
+
+	r6 := [][]string{{"a", "b", "c", "d", "e"}}
+	assert.Equal(r6, Chunk(arr, 6))
 }

 func TestCompact(t *testing.T) {
@@ -186,13 +193,22 @@ func TestGroupWith(t *testing.T) {
 }

 func TestCount(t *testing.T) {
+	numbers := []int{1, 2, 3, 3, 5, 6}
+
+	assert := internal.NewAssert(t, "TestCountBy")
+
+	assert.Equal(1, Count(numbers, 1))
+	assert.Equal(2, Count(numbers, 3))
+}
+
+func TestCountBy(t *testing.T) {
 	nums := []int{1, 2, 3, 4, 5, 6}
 	evenFunc := func(i, num int) bool {
 		return (num % 2) == 0
 	}

-	assert := internal.NewAssert(t, "TestCount")
-	assert.Equal(3, Count(nums, evenFunc))
+	assert := internal.NewAssert(t, "TestCountBy")
+	assert.Equal(3, CountBy(nums, evenFunc))
 }

 func TestFind(t *testing.T) {
@@ -428,6 +444,29 @@ func TestUnion(t *testing.T) {
 	assert.Equal([]int{1, 3, 4, 6}, Union(s1))
 }

+func TestUnionBy(t *testing.T) {
+	assert := internal.NewAssert(t, "TestUnionBy")
+
+	testFunc := func(i int) int {
+		return i / 2
+	}
+
+	result := UnionBy(testFunc, []int{0, 1, 2, 3, 4, 5}, []int{0, 2, 10})
+	assert.Equal(result, []int{0, 2, 4, 10})
+}
+
+func TestMerge(t *testing.T) {
+	assert := internal.NewAssert(t, "TestMerge")
+
+	s1 := []int{1, 2, 3, 4}
+	s2 := []int{2, 3, 4, 5}
+	s3 := []int{4, 5, 6}
+
+	assert.Equal([]int{1, 2, 3, 4, 2, 3, 4, 5, 4, 5, 6}, Merge(s1, s2, s3))
+	assert.Equal([]int{1, 2, 3, 4, 2, 3, 4, 5}, Merge(s1, s2))
+	assert.Equal([]int{2, 3, 4, 5, 4, 5, 6}, Merge(s2, s3))
+}
+
 func TestIntersection(t *testing.T) {
 	s1 := []int{1, 2, 2, 3}
 	s2 := []int{1, 2, 3, 4}
@@ -508,6 +547,56 @@ func TestDifferenceBy(t *testing.T) {
 	assert.Equal([]int{1, 2}, DifferenceBy(s1, s2, addOne))
 }

+func TestSort(t *testing.T) {
+	assert := internal.NewAssert(t, "TestSort")
+
+	numbers := []int{1, 4, 3, 2, 5}
+
+	Sort(numbers)
+	assert.Equal([]int{1, 2, 3, 4, 5}, numbers)
+
+	Sort(numbers, "desc")
+	assert.Equal([]int{5, 4, 3, 2, 1}, numbers)
+
+	strings := []string{"a", "d", "c", "b", "e"}
+
+	Sort(strings)
+	assert.Equal([]string{"a", "b", "c", "d", "e"}, strings)
+
+	Sort(strings, "desc")
+	assert.Equal([]string{"e", "d", "c", "b", "a"}, strings)
+}
+
+func TestSortBy(t *testing.T) {
+	assert := internal.NewAssert(t, "TestSortBy")
+
+	numbers := []int{1, 4, 3, 2, 5}
+
+	SortBy(numbers, func(a, b int) bool {
+		return a < b
+	})
+	assert.Equal([]int{1, 2, 3, 4, 5}, numbers)
+
+	type User struct {
+		Name string
+		Age  uint
+	}
+
+	users := []User{
+		{Name: "a", Age: 21},
+		{Name: "b", Age: 15},
+		{Name: "c", Age: 100}}
+
+	SortBy(users, func(a, b User) bool {
+		return a.Age < b.Age
+	})
+
+	t.Logf("sort users by age: %v", users)
+
+	// output
+	// [{b 15} {a 21} {c 100}]
+}
+
 func TestSortByFielDesc(t *testing.T) {
 	assert := internal.NewAssert(t, "TestSortByFielDesc")

@@ -617,3 +706,48 @@ func TestAppendIfAbsent(t *testing.T) {
 	assert.Equal([]string{"a", "b"}, AppendIfAbsent(str1, "a"))
 	assert.Equal([]string{"a", "b", "c"}, AppendIfAbsent(str1, "c"))
 }
+
+func TestReplace(t *testing.T) {
+	assert := internal.NewAssert(t, "TestReplace")
+
+	strs := []string{"a", "b", "a", "c", "d", "a"}
+
+	assert.Equal([]string{"a", "b", "a", "c", "d", "a"}, Replace(strs, "a", "x", 0))
+	assert.Equal([]string{"x", "b", "a", "c", "d", "a"}, Replace(strs, "a", "x", 1))
+	assert.Equal([]string{"x", "b", "x", "c", "d", "a"}, Replace(strs, "a", "x", 2))
+	assert.Equal([]string{"x", "b", "x", "c", "d", "x"}, Replace(strs, "a", "x", 3))
+	assert.Equal([]string{"x", "b", "x", "c", "d", "x"}, Replace(strs, "a", "x", 4))
+
+	assert.Equal([]string{"x", "b", "x", "c", "d", "x"}, Replace(strs, "a", "x", -1))
+	assert.Equal([]string{"x", "b", "x", "c", "d", "x"}, Replace(strs, "a", "x", -2))
+
+	assert.Equal([]string{"a", "b", "a", "c", "d", "a"}, Replace(strs, "x", "y", 1))
+	assert.Equal([]string{"a", "b", "a", "c", "d", "a"}, Replace(strs, "x", "y", -1))
+}
+
+func TestReplaceAll(t *testing.T) {
+	assert := internal.NewAssert(t, "TestReplaceAll")
+
+	strs := []string{"a", "b", "a", "c", "d", "a"}
+
+	assert.Equal([]string{"x", "b", "x", "c", "d", "x"}, ReplaceAll(strs, "a", "x"))
+	assert.Equal([]string{"a", "b", "a", "c", "d", "a"}, ReplaceAll(strs, "e", "x"))
+}
+
+func TestKeyBy(t *testing.T) {
+	assert := internal.NewAssert(t, "TestKeyBy")
+
+	result := KeyBy([]string{"a", "ab", "abc"}, func(str string) int {
+		return len(str)
+	})
+
+	assert.Equal(result, map[int]string{1: "a", 2: "ab", 3: "abc"})
+}
+
+func TestRepeat(t *testing.T) {
+	assert := internal.NewAssert(t, "TestRepeat")
+
+	result := Repeat("a", 6)
+
+	assert.Equal(result, []string{"a", "a", "a", "a", "a", "a"})
+}
Author	SHA1	Message	Date
dudaodong	205fedb197	release v2.1.11	2022-12-04 11:11:05 +08:00
dudaodong	4c864da62d	doc: update readme file	2022-12-04 11:10:19 +08:00
dudaodong	263ab7e316	clean code	2022-12-03 14:41:58 +08:00
dudaodong	809b7a53df	doc: update docment for slice package	2022-12-03 14:33:15 +08:00
dudaodong	61c43daabb	doc: add doc for Count and CountBy function	2022-12-03 14:20:37 +08:00
dudaodong	18914ee2cd	feat: add deprecat IntSlice, InterfaceSlice and StringSlice	2022-12-03 14:00:44 +08:00
dudaodong	0a8058956f	feat: add Count and CountBy function	2022-12-03 13:04:12 +08:00
dudaodong	a044da7d2f	refactor: clean code	2022-12-03 12:58:25 +08:00
dudaodong	f8b785c4cb	doc: add doc for Sort and SortBy	2022-12-02 15:47:16 +08:00
dudaodong	82c8a04c35	make SortByField function deprecate	2022-12-02 15:17:08 +08:00
dudaodong	280ecb5cef	feat: add SortBy function for slice	2022-12-02 14:53:57 +08:00
dudaodong	ec27ad4c40	feat: add Sort function for slice	2022-12-01 22:46:56 +08:00
dudaodong	d66f92cd68	doc: update slice and convertor document	2022-12-01 11:43:10 +08:00
dudaodong	d8ed692651	refactor: code improvement, ToString, Contain, Compact	2022-12-01 11:38:25 +08:00
dudaodong	a16de97d1d	refactor: code improvement, ToString, Contain, Compact	2022-12-01 11:38:14 +08:00
dudaodong	6f458e4367	doc: add doc for NewSetFromSlice	2022-11-30 12:34:56 +08:00
dudaodong	37c7508ad0	feat: add NewSetFromSlice function for set	2022-11-30 12:00:55 +08:00
dudaodong	acb5844b15	docs: add doc for AddIfNotExist and AddIfNotExistBy	2022-11-30 11:54:04 +08:00
dudaodong	76f4eeea16	docs: add doc for Merge and Repeat	2022-11-30 11:35:32 +08:00
dudaodong	5466a23019	refactor: fix bad code smell	2022-11-30 11:20:13 +08:00
dudaodong	5692982dd1	feat: add AddIfNotExistBy function for set	2022-11-29 23:59:22 +08:00
dudaodong	c39c8914fb	refactor: fix bad code smell	2022-11-29 23:50:17 +08:00
dudaodong	29bdca1bd2	feat: add AddIfNotExist function for set	2022-11-29 23:39:29 +08:00
dudaodong	eb66d038ac	feat: update iterator package	2022-11-29 13:58:48 +08:00
dudaodong	a99ada5ee1	feat: add iterator package	2022-11-28 19:24:25 +08:00
dudaodong	a87faf5453	feat: add Repeate function for slice	2022-11-27 21:43:38 +08:00
dudaodong	ab6fec2f69	refactor: fix bad code smell	2022-11-27 21:36:30 +08:00
dudaodong	7b290989f5	feat: add Merge function	2022-11-27 20:20:00 +08:00
dudaodong	5722c724e6	Merge branch 'main' into v2	2022-11-27 19:29:33 +08:00
dudaodong	f84584ca04	doc: add website link	2022-11-27 18:44:25 +08:00
dudaodong	80cbbdc787	docs: format index content	2022-11-26 17:37:09 +08:00
dudaodong	be148e07ba	fix: fix chunk slice bug	2022-11-26 16:21:57 +08:00
dudaodong	d36ab5cc3a	fix: go report issue ineffassign	2022-11-18 17:05:54 +08:00
dudaodong	2b17329094	release v2.1.10	2022-11-17 16:11:48 +08:00
dudaodong	f869a0a670	fix: issue#62: fix ZipSlip bug	2022-11-16 16:04:38 +08:00
dudaodong	be000a4bd6	fix: issue#62: fix ZipSlip bug	2022-11-16 15:08:42 +08:00
DuDaoDong	81efa800ea	Create SECURITY.md	2022-11-16 11:31:50 +08:00
dudaodong	a783de57a8	release v2.1.9	2022-11-08 15:22:37 +08:00
dudaodong	a622959a78	docs: add new functions readme	2022-11-08 15:21:31 +08:00
dudaodong	f709dd53ce	docs: update doc for random package	2022-11-08 14:48:02 +08:00
dudaodong	ee9e9625e2	docs: add doc for UnionBy and KeyBy	2022-11-08 14:21:17 +08:00
dudaodong	84da7d4f27	feat: add RandUpper, RandLower, RandNumeral, and RandNumeralOrLetter	2022-11-06 20:04:52 +08:00
dudaodong	089fd4e13c	feat: add UnionBy for slice	2022-11-05 19:45:34 +08:00
dudaodong	6c40e02324	refactor: clean code	2022-11-05 19:33:56 +08:00
dudaodong	a270b1b634	feat: make code clear	2022-11-05 17:09:56 +08:00
dudaodong	260fb795d3	feat: add KeyBy for slice	2022-11-05 16:52:31 +08:00
dudaodong	8c036f830c	refactor: remove unuseful code	2022-11-05 16:39:42 +08:00
dudaodong	bf332b9f1c	release v2.1.8	2022-10-21 16:22:52 +08:00
dudaodong	6b6cd66f9f	Merge branch 'main' into v2	2022-10-19 17:31:51 +08:00
燕归来	5399c2290e	feat: support type alias for Number constraint (#60 )	2022-10-19 17:21:53 +08:00
dudaodong	6248293c49	doc: add docment for Replace and ReplaceAll	2022-10-17 10:40:35 +08:00
dudaodong	eced25b76d	test: add unit test for Replace and ReplaceAll	2022-10-17 10:26:54 +08:00
dudaodong	96a4327aa7	fix: fix some static check issues	2022-10-15 15:03:24 +08:00
dudaodong	fcfbdea597	feat: add Replace and ReplaceAll for slice	2022-10-15 14:49:49 +08:00
dudaodong	87896f917a	doc: add document for pipeline	2022-10-15 12:36:11 +08:00
dudaodong	b8563ed646	feat: add Pipeline function	2022-10-15 12:29:47 +08:00
dudaodong	1ccf0af2b3	doc: update document for datetime package	2022-10-14 10:20:38 +08:00