release v2.1.10

fix: issue#62: fix ZipSlip bug
2026-02-05 05:12:26 +08:00 · 2022-11-17 16:11:48 +08:00 · 2022-11-16 16:04:38 +08:00 · 2022-11-16 15:08:42 +08:00 · 2022-11-16 11:31:50 +08:00 · 2022-11-08 15:22:37 +08:00
12 changed files with 1527 additions and 1061 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-2.1.8-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-2.1.10-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>
@@ -22,22 +23,25 @@ English | [简体中文](./README_zh-CN.md)

 ## 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

@@ -288,15 +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)
- [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)

+-   [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.

@@ -305,15 +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.

@@ -322,19 +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.

@@ -343,27 +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.

@@ -372,10 +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.

@@ -384,11 +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.

@@ -397,93 +417,99 @@ 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)
- [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)
- [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)
+-   [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)
+-   [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)
+-   [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)
+-   [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.

@@ -493,41 +519,43 @@ 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-2.1.8-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-2.1.10-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>
@@ -19,30 +20,32 @@

 简体中文 | [English](./README.md)

-
 ## 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"
@@ -255,192 +267,204 @@ 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)
- [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)

+-   [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)
- [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)
- [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)
+-   [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)
+-   [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)
+-   [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)
+-   [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"
@@ -448,91 +472,94 @@ 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/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 +21,23 @@ 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 +45,7 @@ import (
 ```go
 func RandBytes(length int) []byte
 ```
+
 <b>Example:</b>

 ```go
@@ -54,8 +62,8 @@ 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 +71,7 @@ func main() {
 ```go
 func RandInt(min, max int) int
 ```
+
 <b>Example:</b>

 ```go
@@ -79,16 +88,16 @@ 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 +110,116 @@ 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 +227,7 @@ func main() {
 ```go
 func UUIdV4() (string, error)
 ```
+
 <b>Example:</b>

 ```go
@@ -134,5 +246,3 @@ 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 +21,23 @@ 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 +45,7 @@ import (
 ```go
 func RandBytes(length int) []byte
 ```
+
 <b>例子:</b>

 ```go
@@ -55,8 +62,8 @@ 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 +71,7 @@ func main() {
 ```go
 func RandInt(min, max int) int
 ```
+
 <b>例子:</b>

 ```go
@@ -80,16 +88,16 @@ 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 +110,116 @@ 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 +227,7 @@ func main() {
 ```go
 func UUIdV4() (string, error)
 ```
+
 <b>例子:</b>

 ```go
@@ -134,5 +246,3 @@ func main() {
 	fmt.Println(uuid)
 }
 ```
-
-
--- a/docs/slice.md
+++ b/docs/slice.md
@@ -1,16 +1,17 @@
 # Slice
+
 Package slice implements some functions to manipulate slice.

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

 ## Source:

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

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

 ## Usage:
+
 ```go
 import (
    "github.com/duke-git/lancet/v2/slice"
@@ -20,59 +21,63 @@ import (
 <div STYLE="page-break-after: always;"></div>

 ## Index
- [AppendIfAbsent](#AppendIfAbsent)
- [Contain](#Contain)
- [ContainSubSlice](#ContainSubSlice)
- [Chunk](#Chunk)
- [Compact](#Compact)
- [Concat](#Concat)
- [Count](#Count)
- [Difference](#Difference)
- [DifferenceBy](#DifferenceBy)
- [DifferenceWith](#DifferenceWith)
- [DeleteAt](#DeleteAt)
- [Drop](#Drop)
- [Equal](#Equal)
- [EqualWith](#EqualWith)
- [Every](#Every)
- [Filter](#Filter)
- [Find](#Find)
- [FindLast](#FindLast)
- [Flatten](#Flatten)
- [FlattenDeep](#FlattenDeep)
- [ForEach](#ForEach)

- [GroupBy](#GroupBy)
- [GroupWith](#GroupWith)
- [IntSlice](#IntSlice)
- [InterfaceSlice](#InterfaceSlice)
- [Intersection](#Intersection)
- [InsertAt](#InsertAt)
- [IndexOf](#IndexOf)
- [LastIndexOf](#LastIndexOf)
- [Map](#Map)
- [Reverse](#Reverse)
- [Reduce](#Reduce)
- [Replace](#Replace)
- [ReplaceAll](#ReplaceAll)
- [Shuffle](#Shuffle)
- [SortByField](#SortByField)
- [Some](#Some)
- [StringSlice](#StringSlice)
- [SymmetricDifference](#SymmetricDifference)
- [ToSlice](#ToSlice)
- [ToSlicePointer](#ToSlicePointer)
- [Unique](#Unique)
- [UniqueBy](#UniqueBy)
- [Union](#Union)
- [UpdateAt](#UpdateAt)
- [Without](#Without)
+-   [AppendIfAbsent](#AppendIfAbsent)
+-   [Contain](#Contain)
+-   [ContainSubSlice](#ContainSubSlice)
+-   [Chunk](#Chunk)
+-   [Compact](#Compact)
+-   [Concat](#Concat)
+-   [Count](#Count)
+-   [Difference](#Difference)
+-   [DifferenceBy](#DifferenceBy)
+-   [DifferenceWith](#DifferenceWith)
+-   [DeleteAt](#DeleteAt)
+-   [Drop](#Drop)
+-   [Equal](#Equal)
+-   [EqualWith](#EqualWith)
+-   [Every](#Every)
+-   [Filter](#Filter)
+-   [Find](#Find)
+-   [FindLast](#FindLast)
+-   [Flatten](#Flatten)
+-   [FlattenDeep](#FlattenDeep)
+-   [ForEach](#ForEach)
+
+-   [GroupBy](#GroupBy)
+-   [GroupWith](#GroupWith)
+-   [IntSlice](#IntSlice)
+-   [InterfaceSlice](#InterfaceSlice)
+-   [Intersection](#Intersection)
+-   [InsertAt](#InsertAt)
+-   [IndexOf](#IndexOf)
+-   [LastIndexOf](#LastIndexOf)
+-   [Map](#Map)
+-   [Reverse](#Reverse)
+-   [Reduce](#Reduce)
+-   [Replace](#Replace)
+-   [ReplaceAll](#ReplaceAll)
+-   [Shuffle](#Shuffle)
+-   [SortByField](#SortByField)
+-   [Some](#Some)
+-   [StringSlice](#StringSlice)
+-   [SymmetricDifference](#SymmetricDifference)
+-   [ToSlice](#ToSlice)
+-   [ToSlicePointer](#ToSlicePointer)
+-   [Unique](#Unique)
+-   [UniqueBy](#UniqueBy)
+-   [Union](#Union)
+-   [UnionBy](#UnionBy)
+-   [UpdateAt](#UpdateAt)
+-   [Without](#Without)
+-   [KeyBy](#KeyBy)

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

 ## Documentation

 ### <span id="AppendIfAbsent">AppendIfAbsent</span>
+
 <p>If slice doesn't contain the value, append it to the slice.</p>

 <b>Signature:</b>
@@ -80,6 +85,7 @@ import (
 ```go
 func AppendIfAbsent[T comparable](slice []T, value T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -98,8 +104,8 @@ func main() {
 }
 ```

-
 ### <span id="Contain">Contain</span>
+
 <p>Check if the value is in the slice or not.</p>

 <b>Signature:</b>
@@ -107,6 +113,7 @@ func main() {
 ```go
 func Contain[T comparable](slice []T, value T) bool
 ```
+
 <b>Example:</b>

 ```go
@@ -121,8 +128,8 @@ func main() {
 }
 ```

-
 ### <span id="ContainSubSlice">ContainSubSlice</span>
+
 <p>Check if the slice contain subslice or not.</p>

 <b>Signature:</b>
@@ -130,6 +137,7 @@ func main() {
 ```go
 func ContainSubSlice[T comparable](slice, subslice []T) bool
 ```
+
 <b>Example:</b>

 ```go
@@ -144,10 +152,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="Chunk">Chunk</span>
+
 <p>Creates an slice of elements split into groups the length of `size`.</p>

 <b>Signature:</b>
@@ -155,6 +161,7 @@ func main() {
 ```go
 func Chunk[T any](slice []T, size int) [][]T
 ```
+
 <b>Example:</b>

 ```go
@@ -170,9 +177,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Compact">Compact</span>
+
 <p>Creates an slice with all falsey values removed. The values false, nil, 0, and "" are falsey.</p>

 <b>Signature:</b>
@@ -180,6 +186,7 @@ func main() {
 ```go
 func Compact[T any](slice []T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -194,8 +201,8 @@ func main() {
 }
 ```

-
 ### <span id="Concat">Concat</span>
+
 <p>Creates a new slice concatenating slice with any additional slices and/or values.</p>

 <b>Signature:</b>
@@ -203,6 +210,7 @@ func main() {
 ```go
 func Concat[T any](slice []T, values ...[]T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -220,9 +228,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Count">Count</span>
+
 <p>Count iterates over elements of slice, returns a count of all matched elements.</p>

 <b>Signature:</b>
@@ -230,6 +237,7 @@ func main() {
 ```go
 func Count[T any](slice []T, predicate func(index int, t T) bool) int
 ```
+
 <b>Example:</b>

 ```go
@@ -249,10 +257,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="Difference">Difference</span>
+
 <p>Creates an slice of whose element not included in the other given slice.</p>

 <b>Signature:</b>
@@ -260,6 +266,7 @@ func main() {
 ```go
 func Difference[T comparable](slice, comparedSlice []T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -277,10 +284,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="DifferenceBy">DifferenceBy</span>
+
 <p>DifferenceBy accepts iteratee func which is invoked for each element of slice and values to generate the criterion by which they're compared.</p>

 <b>Signature:</b>
@@ -288,6 +293,7 @@ func main() {
 ```go
 func DifferenceBy[T comparable](slice []T, comparedSlice []T, iteratee func(index int, item T) T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -308,8 +314,8 @@ func main() {
 }
 ```

-
 ### <span id="DifferenceWith">DifferenceWith</span>
+
 <p>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.</p>

 <b>Signature:</b>
@@ -317,6 +323,7 @@ func main() {
 ```go
 func DifferenceWith[T any](slice []T, comparedSlice []T, comparator func(value, otherValue T) bool) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -338,6 +345,7 @@ func main() {
 ```

 ### <span id="DeleteAt">DeleteAt</span>
+
 <p>Delete the element of slice from start index to end index - 1.</p>

 <b>Signature:</b>
@@ -345,6 +353,7 @@ func main() {
 ```go
 func DeleteAt[T any](slice []T, start int, end ...int)
 ```
+
 <b>Example:</b>

 ```go
@@ -363,10 +372,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="Drop">Drop</span>
+
 <p>Creates a slice with `n` elements dropped from the beginning when n > 0, or `n` elements dropped from the ending when n < 0.</p>

 <b>Signature:</b>
@@ -374,6 +381,7 @@ func main() {
 ```go
 func Drop[T any](slice []T, n int) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -394,9 +402,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Equal">Equal</span>
+
 <p>Check if two slices are equal: the same length and all elements' order and value are equal.</p>

 <b>Signature:</b>
@@ -404,6 +411,7 @@ func main() {
 ```go
 func Equal[T comparable](slice1, slice2 []T) bool
 ```
+
 <b>Example:</b>

 ```go
@@ -425,9 +433,8 @@ func main() {
 }
 ```

-
-
 ### <span id="EqualWith">EqualWith</span>
+
 <p>Check if two slices are equal with comparator func.</p>

 <b>Signature:</b>
@@ -435,6 +442,7 @@ func main() {
 ```go
 func EqualWith[T, U any](slice1 []T, slice2 []U, comparator func(T, U) bool) bool
 ```
+
 <b>Example:</b>

 ```go
@@ -457,9 +465,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Every">Every</span>
+
 <p>Return true if all of the values in the slice pass the predicate function.</p>

 <b>Signature:</b>
@@ -467,6 +474,7 @@ func main() {
 ```go
 func Every[T any](slice []T, predicate func(index int, item T) bool) bool
 ```
+
 <b>Example:</b>

 ```go
@@ -486,10 +494,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="Filter">Filter</span>
+
 <p>Return all elements which match the function.</p>

 <b>Signature:</b>
@@ -497,6 +503,7 @@ func main() {
 ```go
 func Filter[T any](slice []T, predicate func(index int, item T) bool) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -516,9 +523,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Find">Find</span>
+
 <p>Iterates over elements of slice, returning the first one that passes a truth test on function.</p>

 <b>Signature:</b>
@@ -526,6 +532,7 @@ func main() {
 ```go
 func Find[T any](slice []T, predicate func(index int, item T) bool) (*T, bool)
 ```
+
 <b>Example:</b>

 ```go
@@ -546,10 +553,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="FindLast">FindLast</span>
+
 <p>iterates over elements of slice from end to begin, returning the last one that passes a truth test on function.</p>

 <b>Signature:</b>
@@ -557,6 +562,7 @@ func main() {
 ```go
 func FindLast[T any](slice []T, predicate func(index int, item T) bool) (*T, bool)
 ```
+
 <b>Example:</b>

 ```go
@@ -577,9 +583,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Flatten">Flatten</span>
+
 <p>Flatten slice with one level.</p>

 <b>Signature:</b>
@@ -587,6 +592,7 @@ func main() {
 ```go
 func Flatten(slice any) any
 ```
+
 <b>Example:</b>

 ```go
@@ -602,9 +608,8 @@ func main() {
 }
 ```

-
-
 ### <span id="FlattenDeep">FlattenDeep</span>
+
 <p>flattens slice recursive.</p>

 <b>Signature:</b>
@@ -612,6 +617,7 @@ func main() {
 ```go
 func FlattenDeep(slice any) any
 ```
+
 <b>Example:</b>

 ```go
@@ -627,11 +633,8 @@ func main() {
 }
 ```

-
-
-
-
 ### <span id="ForEach">ForEach</span>
+
 <p>Iterates over elements of slice and invokes function for each element.</p>

 <b>Signature:</b>
@@ -639,6 +642,7 @@ func main() {
 ```go
 func ForEach[T any](slice []T, iteratee func(index int, item T))
 ```
+
 <b>Example:</b>

 ```go
@@ -657,10 +661,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="GroupBy">GroupBy</span>
+
 <p>Iterates over elements of the slice, each element will be group by criteria, returns two slices.</p>

 <b>Signature:</b>
@@ -668,6 +670,7 @@ func main() {
 ```go
 func GroupBy[T any](slice []T, groupFn func(index int, item T) bool) ([]T, []T)
 ```
+
 <b>Example:</b>

 ```go
@@ -688,17 +691,16 @@ func main() {
 }
 ```

-
-
-
 ### <span id="GroupWith">GroupWith</span>
+
 <p>Return a map composed of keys generated from the results of running each element of slice thru iteratee.</p>

 <b>Signature:</b>

 ```go
-func GroupWith[T any, U comparable](slice []T, iteratee func(T) U) map[U][]T 
+func GroupWith[T any, U comparable](slice []T, iteratee func(T) U) map[U][]T
 ```
+
 <b>Example:</b>

 ```go
@@ -717,9 +719,8 @@ func main() {
 }
 ```

-
-
 ### <span id="IntSlice">IntSlice</span>
+
 <p>Convert interface slice to int slice.</p>

 <b>Signature:</b>
@@ -727,6 +728,7 @@ func main() {
 ```go
 func IntSlice(slice any) []int
 ```
+
 <b>Example:</b>

 ```go
@@ -742,10 +744,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="InterfaceSlice">InterfaceSlice</span>
+
 <p>Convert value to interface slice.</p>

 <b>Signature:</b>
@@ -753,6 +753,7 @@ func main() {
 ```go
 func InterfaceSlice(slice any) []any
 ```
+
 <b>Example:</b>

 ```go
@@ -768,10 +769,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="Intersection">Intersection</span>
+
 <p>Creates a slice of unique values that included by all slices.</p>

 <b>Signature:</b>
@@ -779,6 +778,7 @@ func main() {
 ```go
 func Intersection[T comparable](slices ...[]T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -796,10 +796,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="InsertAt">InsertAt</span>
+
 <p>insert the element into slice at index.</p>

 <b>Signature:</b>
@@ -807,6 +805,7 @@ func main() {
 ```go
 func InsertAt[T any](slice []T, index int, value any) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -817,7 +816,7 @@ import (

 func main() {
 	s := []string{"a", "b", "c"}
-	
+
 	res1, _ := slice.InsertAt(s, 0, "1")
 	fmt.Println(res1) //[]string{"1", "a", "b", "c"}

@@ -826,10 +825,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="IndexOf">IndexOf</span>
+
 <p>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.</p>

 <b>Signature:</b>
@@ -837,6 +834,7 @@ func main() {
 ```go
 func IndexOf[T comparable](slice []T, value T) int
 ```
+
 <b>Example:</b>

 ```go
@@ -855,9 +853,8 @@ func main() {
 }
 ```

-
-
 ### <span id="LastIndexOf">LastIndexOf</span>
+
 <p>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.</p>

 <b>Signature:</b>
@@ -865,6 +862,7 @@ func main() {
 ```go
 func LastIndexOf[T comparable](slice []T, value T) int
 ```
+
 <b>Example:</b>

 ```go
@@ -883,10 +881,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="Map">Map</span>
+
 <p>Creates an slice of values by running each element in slice thru function.</p>

 <b>Signature:</b>
@@ -894,6 +890,7 @@ func main() {
 ```go
 func Map[T any, U any](slice []T, iteratee func(index int, item T) U) []U
 ```
+
 <b>Example:</b>

 ```go
@@ -912,10 +909,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="Reverse">Reverse</span>
+
 <p>Reverse the elements order in slice.</p>

 <b>Signature:</b>
@@ -923,6 +918,7 @@ func main() {
 ```go
 func Reverse[T any](slice []T)
 ```
+
 <b>Example:</b>

 ```go
@@ -938,9 +934,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Reduce">Reduce</span>
+
 <p>Reduce slice.</p>

 <b>Signature:</b>
@@ -948,6 +943,7 @@ func main() {
 ```go
 func Reduce[T any](slice []T, iteratee func(index int, item1, item2 T) T, initial T) T
 ```
+
 <b>Example:</b>

 ```go
@@ -966,9 +962,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Replace">Replace</span>
+
 <p>Returns a copy of the slice with the first n non-overlapping instances of old replaced by new.</p>

 <b>Signature:</b>
@@ -976,6 +971,7 @@ func main() {
 ```go
 func Replace[T comparable](slice []T, old T, new T, n int) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -995,9 +991,8 @@ func main() {
 }
 ```

-
-
 ### <span id="ReplaceAll">ReplaceAll</span>
+
 <p>Returns a copy of the slice with the first n non-overlapping instances of old replaced by new.</p>

 <b>Signature:</b>
@@ -1005,6 +1000,7 @@ func main() {
 ```go
 func ReplaceAll[T comparable](slice []T, old T, new T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -1022,8 +1018,8 @@ func main() {
 }
 ```

-
 ### <span id="Shuffle">Shuffle</span>
+
 <p>Creates an slice of shuffled values.</p>

 <b>Signature:</b>
@@ -1031,6 +1027,7 @@ func main() {
 ```go
 func Shuffle[T any](slice []T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -1046,9 +1043,8 @@ func main() {
 }
 ```

-
-
 ### <span id="SortByField">SortByField</span>
+
 <p>Sort struct slice by field. Slice element should be struct, field type should be int, uint, string, or bool. Default sort type is ascending (asc), if descending order, set sortType to desc</p>

 <b>Signature:</b>
@@ -1056,6 +1052,7 @@ func main() {
 ```go
 func SortByField(slice any, field string, sortType ...string) error
 ```
+
 <b>Example:</b>

 ```go
@@ -1079,7 +1076,7 @@ func main() {
 	if err != nil {
 		fmt.Println(err)
 	}
-	fmt.Println(students) 
+	fmt.Println(students)
 	// []students{
 	// 	{"b", 15},
 	// 	{"a", 10},
@@ -1089,9 +1086,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Some">Some</span>
+
 <p>Return true if any of the values in the list pass the predicate function.</p>

 <b>Signature:</b>
@@ -1099,6 +1095,7 @@ func main() {
 ```go
 func Some[T any](slice []T, predicate func(index int, item T) bool) bool
 ```
+
 <b>Example:</b>

 ```go
@@ -1118,9 +1115,8 @@ func main() {
 }
 ```

-
-
 ### <span id="StringSlice">StringSlice</span>
+
 <p>Convert interface slice to string slice.</p>

 <b>Signature:</b>
@@ -1128,6 +1124,7 @@ func main() {
 ```go
 func StringSlice(slice any) []string
 ```
+
 <b>Example:</b>

 ```go
@@ -1143,10 +1140,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="SymmetricDifference">SymmetricDifference</span>
+
 <p>Create a slice whose element is in given slices, but not in both slices.</p>

 <b>Signature:</b>
@@ -1154,6 +1149,7 @@ func main() {
 ```go
 func SymmetricDifference[T comparable](slices ...[]T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -1173,9 +1169,8 @@ func main() {
 }
 ```

-
-
 ### <span id="ToSlice">ToSlice</span>
+
 <p>Returns a slices of a variable parameter transformation</p>

 <b>Signature:</b>
@@ -1183,6 +1178,7 @@ func main() {
 ```go
 func ToSlice[T any](value ...T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -1197,9 +1193,8 @@ func main() {
 }
 ```

-
-
 ### <span id="ToSlicePointer">ToSlicePointer</span>
+
 <p>Returns a pointer to the slices of a variable parameter transformation</p>

 <b>Signature:</b>
@@ -1207,6 +1202,7 @@ func main() {
 ```go
 func ToSlicePointer[T any](value ...T) []*T
 ```
+
 <b>Example:</b>

 ```go
@@ -1223,8 +1219,8 @@ func main() {
 }
 ```

-
 ### <span id="Unique">Unique</span>
+
 <p>Remove duplicate elements in slice.</p>

 <b>Signature:</b>
@@ -1232,6 +1228,7 @@ func main() {
 ```go
 func Unique[T comparable](slice []T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -1246,9 +1243,8 @@ func main() {
 }
 ```

-
-
 ### <span id="UniqueBy">UniqueBy</span>
+
 <p>Call iteratee func with every item of slice, then remove duplicated.</p>

 <b>Signature:</b>
@@ -1256,6 +1252,7 @@ func main() {
 ```go
 func UniqueBy[T comparable](slice []T, iteratee func(item T) T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -1272,9 +1269,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Union">Union</span>
+
 <p>Creates a slice of unique values, in order, from all given slices. using == for equality comparisons.</p>

 <b>Signature:</b>
@@ -1282,6 +1278,7 @@ func main() {
 ```go
 func Union[T comparable](slices ...[]T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -1299,9 +1296,35 @@ func main() {
 }
 ```

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

+<p>UnionBy is like Union, what's more it accepts iteratee which is invoked for each element of each slice.</p>
+
+<b>Signature:</b>
+
+```go
+func UnionBy[T any, V comparable](predicate func(item T) V, slices ...[]T) []T
+```
+
+<b>Example:</b>
+
+```go
+import (
+	"fmt"
+	"github.com/duke-git/lancet/v2/slice"
+)
+
+func main() {
+	testFunc := func(i int) int {
+		return i / 2
+	}
+	result := slice.UnionBy(testFunc, []int{0, 1, 2, 3, 4, 5}, []int{0, 2, 10})
+	fmt.Println(result) //[]int{0, 2, 4, 10}
+}
+```

 ### <span id="UpdateAt">UpdateAt</span>
+
 <p>Update the slice element at index. if param index < 0 or index >= len(slice), will return error. </p>

 <b>Signature:</b>
@@ -1309,6 +1332,7 @@ func main() {
 ```go
 func UpdateAt[T any](slice []T, index int, value T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -1319,16 +1343,14 @@ import (

 func main() {
 	s := []string{"a", "b", "c"}
-	
+
 	res1, _ := slice.UpdateAt(s, 0, "1")
 	fmt.Println(res1) //[]string{"1", "b", "c"}
 }
 ```

-
-
-
 ### <span id="Without">Without</span>
+
 <p>Creates a slice excluding all given values. </p>

 <b>Signature:</b>
@@ -1336,6 +1358,7 @@ func main() {
 ```go
 func Without[T comparable](slice []T, values ...T) []T
 ```
+
 <b>Example:</b>

 ```go
@@ -1350,13 +1373,29 @@ func main() {
 }
 ```

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

+<p>Converts a slice to a map based on a callback function.</p>

+<b>Signature:</b>

+```go
+func KeyBy[T any, U comparable](slice []T, iteratee func(item T) U) map[U]T
+```

+<b>Example:</b>

+```go
+import (
+	"fmt"
+	"github.com/duke-git/lancet/v2/slice"
+)

+func main() {
+	res := slice.KeyBy([]string{"a", "ab", "abc"}, func(str string) int {
+		return len(str)
+	})

-
-
-
+	fmt.Println(res) //map[int]string{1: "a", 2: "ab", 3: "abc"}
+}
+```
--- a/docs/slice_zh-CN.md
+++ b/docs/slice_zh-CN.md
@@ -1,16 +1,17 @@
 # Slice
-slice包包含操作切片的方法集合。
+
+slice 包包含操作切片的方法集合。

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

 ## 源码:

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

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

 ## 用法:
+
 ```go
 import (
    "github.com/duke-git/lancet/v2/slice"
@@ -20,59 +21,63 @@ import (
 <div STYLE="page-break-after: always;"></div>

 ## 目录
- [AppendIfAbsent](#AppendIfAbsent)
- [Contain](#Contain)
- [ContainSubSlice](#ContainSubSlice)
- [Chunk](#Chunk)
- [Compact](#Compact)
- [Concat](#Concat)
- [Count](#Count)
- [Difference](#Difference)
- [DifferenceBy](#DifferenceBy)
- [DifferenceWith](#DifferenceWith)
- [DeleteAt](#DeleteAt)
- [Drop](#Drop)
- [Every](#Every)
- [Equal](#Equal)
- [EqualWith](#EqualWith)
- [Filter](#Filter)
- [Find](#Find)
- [FindLast](#FindLast)
- [Flatten](#Flatten)
- [FlattenDeep](#FlattenDeep)
- [ForEach](#ForEach)
-  
- [GroupBy](#GroupBy)
- [GroupWith](#GroupWith)
- [IntSlice](#IntSlice)
- [InterfaceSlice](#InterfaceSlice)
- [Intersection](#Intersection)
- [InsertAt](#InsertAt)
- [IndexOf](#IndexOf)
- [LastIndexOf](#LastIndexOf)
- [Map](#Map)
- [Reverse](#Reverse)
- [Reduce](#Reduce)
- [Replace](#Replace)
- [ReplaceAll](#ReplaceAll)
- [Shuffle](#Shuffle)
- [SortByField](#SortByField)
- [Some](#Some)
- [StringSlice](#StringSlice)
- [SymmetricDifference](#SymmetricDifference)
- [ToSlice](#ToSlice)
- [ToSlicePointer](#ToSlicePointer)
- [Unique](#Unique)
- [UniqueBy](#UniqueBy)
- [Union](#Union)
- [UpdateAt](#UpdateAt)
- [Without](#Without)
+
+-   [AppendIfAbsent](#AppendIfAbsent)
+-   [Contain](#Contain)
+-   [ContainSubSlice](#ContainSubSlice)
+-   [Chunk](#Chunk)
+-   [Compact](#Compact)
+-   [Concat](#Concat)
+-   [Count](#Count)
+-   [Difference](#Difference)
+-   [DifferenceBy](#DifferenceBy)
+-   [DifferenceWith](#DifferenceWith)
+-   [DeleteAt](#DeleteAt)
+-   [Drop](#Drop)
+-   [Every](#Every)
+-   [Equal](#Equal)
+-   [EqualWith](#EqualWith)
+-   [Filter](#Filter)
+-   [Find](#Find)
+-   [FindLast](#FindLast)
+-   [Flatten](#Flatten)
+-   [FlattenDeep](#FlattenDeep)
+-   [ForEach](#ForEach)
+-   [GroupBy](#GroupBy)
+-   [GroupWith](#GroupWith)
+-   [IntSlice](#IntSlice)
+
+-   [InterfaceSlice](#InterfaceSlice)
+-   [Intersection](#Intersection)
+-   [InsertAt](#InsertAt)
+-   [IndexOf](#IndexOf)
+-   [LastIndexOf](#LastIndexOf)
+-   [Map](#Map)
+-   [Reverse](#Reverse)
+-   [Reduce](#Reduce)
+-   [Replace](#Replace)
+-   [ReplaceAll](#ReplaceAll)
+-   [Shuffle](#Shuffle)
+-   [SortByField](#SortByField)
+-   [Some](#Some)
+-   [StringSlice](#StringSlice)
+-   [SymmetricDifference](#SymmetricDifference)
+-   [ToSlice](#ToSlice)
+-   [ToSlicePointer](#ToSlicePointer)
+-   [Unique](#Unique)
+-   [UniqueBy](#UniqueBy)
+-   [Union](#Union)
+-   [UnionBy](#UnionBy)
+-   [UpdateAt](#UpdateAt)
+-   [Without](#Without)
+-   [KeyBy](#KeyBy)

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

 ## 文档

 ### <span id="AppendIfAbsent">AppendIfAbsent</span>
+
 <p>当前切片中不包含值时，将该值追加到切片中</p>

 <b>函数签名:</b>
@@ -80,6 +85,7 @@ import (
 ```go
 func AppendIfAbsent[T comparable](slice []T, value T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -98,9 +104,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Contain">Contain</span>
+
 <p>判断slice是否包含value</p>

 <b>函数签名:</b>
@@ -108,6 +113,7 @@ func main() {
 ```go
 func Contain[T comparable](slice []T, value T) bool
 ```
+
 <b>例子:</b>

 ```go
@@ -122,8 +128,8 @@ func main() {
 }
 ```

-
 ### <span id="ContainSubSlice">ContainSubSlice</span>
+
 <p>判断slice是否包含subslice</p>

 <b>函数签名:</b>
@@ -131,6 +137,7 @@ func main() {
 ```go
 func ContainSubSlice[T comparable](slice, subslice []T) bool
 ```
+
 <b>例子:</b>

 ```go
@@ -145,10 +152,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="Chunk">Chunk</span>
+
 <p>按照size参数均分slice</p>

 <b>函数签名:</b>
@@ -156,6 +161,7 @@ func main() {
 ```go
 func Chunk[T any](slice []T, size int) [][]T
 ```
+
 <b>例子:</b>

 ```go
@@ -171,9 +177,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Compact">Compact</span>
+
 <p>去除slice中的假值（false values are false, nil, 0, ""）</p>

 <b>函数签名:</b>
@@ -181,6 +186,7 @@ func main() {
 ```go
 func Compact[T any](slice []T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -195,8 +201,8 @@ func main() {
 }
 ```

-
 ### <span id="Concat">Concat</span>
+
 <p>连接values到slice中，values类型可以是切片或多个值</p>

 <b>函数签名:</b>
@@ -204,6 +210,7 @@ func main() {
 ```go
 func Concat[T any](slice []T, values ...[]T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -221,9 +228,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Count">Count</span>
+
 <p>遍历切片，对每个元素执行函数function. 返回符合函数返回值为true的元素的个数</p>

 <b>函数签名:</b>
@@ -231,6 +237,7 @@ func main() {
 ```go
 func Count[T any](slice []T, predicate func(index int, t T) bool) int
 ```
+
 <b>例子:</b>

 ```go
@@ -250,10 +257,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="Difference">Difference</span>
+
 <p>创建一个切片，其元素不包含在另一个给定切片中</p>

 <b>函数签名:</b>
@@ -261,6 +266,7 @@ func main() {
 ```go
 func Difference[T comparable](slice, comparedSlice []T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -278,10 +284,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="DifferenceBy">DifferenceBy</span>
+
 <p>在slice和comparedSlice中的每个元素调用iteratee函数，并比较它们的返回值，如果不想等返回在slice中对应的值</p>

 <b>函数签名:</b>
@@ -289,6 +293,7 @@ func main() {
 ```go
 func DifferenceBy[T comparable](slice []T, comparedSlice []T, iteratee func(index int, item T) T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -309,9 +314,8 @@ func main() {
 }
 ```

-
-
 ### <span id="DifferenceWith">DifferenceWith</span>
+
 <p>DifferenceWith 接受比较器，该比较器被调用以将切片的元素与值进行比较。 结果值的顺序和引用由第一个切片确定</p>

 <b>函数签名:</b>
@@ -319,6 +323,7 @@ func main() {
 ```go
 func DifferenceWith[T any](slice []T, comparedSlice []T, comparator func(value, otherValue T) bool) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -339,8 +344,8 @@ func main() {
 }
 ```

-
 ### <span id="DeleteAt">DeleteAt</span>
+
 <p>删除切片中从开始索引到结束索引-1的元素</p>

 <b>函数签名:</b>
@@ -348,6 +353,7 @@ func main() {
 ```go
 func DeleteAt[T any](slice []T, start int, end ...int)
 ```
+
 <b>例子:</b>

 ```go
@@ -366,10 +372,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="Drop">Drop</span>
+
 <p>创建一个切片，当 n > 0 时从开头删除 n 个元素，或者当 n < 0 时从结尾删除 n 个元素</p>

 <b>函数签名:</b>
@@ -377,6 +381,7 @@ func main() {
 ```go
 func Drop[T any](slice []T, n int) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -397,10 +402,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="Every">Every</span>
+
 <p>如果切片中的所有值都通过谓词函数，则返回true。 函数签名应该是func(index int, value any) bool</p>

 <b>函数签名:</b>
@@ -408,6 +411,7 @@ func main() {
 ```go
 func Every[T any](slice []T, predicate func(index int, item T) bool) bool
 ```
+
 <b>例子:</b>

 ```go
@@ -427,10 +431,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="Equal">Equal</span>
+
 <p>检查两个切片是否相等，相等条件：切片长度相同，元素顺序和值都相同</p>

 <b>函数签名:</b>
@@ -438,6 +440,7 @@ func main() {
 ```go
 func Equal[T comparable](slice1, slice2 []T) bool
 ```
+
 <b>例子:</b>

 ```go
@@ -459,9 +462,8 @@ func main() {
 }
 ```

-
-
 ### <span id="EqualWith">EqualWith</span>
+
 <p>检查两个切片是否相等，相等条件：对两个切片的元素调用比较函数comparator，返回true</p>

 <b>函数签名:</b>
@@ -469,6 +471,7 @@ func main() {
 ```go
 func EqualWith[T, U any](slice1 []T, slice2 []U, comparator func(T, U) bool) bool
 ```
+
 <b>例子:</b>

 ```go
@@ -491,9 +494,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Filter">Filter</span>
+
 <p>返回切片中通过predicate函数真值测试的所有元素</p>

 <b>函数签名:</b>
@@ -501,6 +503,7 @@ func main() {
 ```go
 func Filter[T any](slice []T, predicate func(index int, item T) bool) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -520,9 +523,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Find">Find</span>
+
 <p>遍历切片的元素，返回第一个通过predicate函数真值测试的元素</p>

 <b>函数签名:</b>
@@ -530,6 +532,7 @@ func main() {
 ```go
 func Find[T any](slice []T, predicate func(index int, item T) bool) (*T, bool)
 ```
+
 <b>例子:</b>

 ```go
@@ -550,10 +553,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="FindLast">FindLast</span>
+
 <p>从头到尾遍历slice的元素，返回最后一个通过predicate函数真值测试的元素。</p>

 <b>函数签名:</b>
@@ -561,6 +562,7 @@ func main() {
 ```go
 func FindLast[T any](slice []T, predicate func(index int, item T) bool) (*T, bool)
 ```
+
 <b>例子:</b>

 ```go
@@ -581,8 +583,8 @@ func main() {
 }
 ```

-
 ### <span id="Flatten">Flatten</span>
+
 <p>将切片压平一层</p>

 <b>函数签名:</b>
@@ -590,6 +592,7 @@ func main() {
 ```go
 func Flatten(slice any) any
 ```
+
 <b>例子:</b>

 ```go
@@ -605,9 +608,8 @@ func main() {
 }
 ```

-
-
 ### <span id="FlattenDeep">FlattenDeep</span>
+
 <p>flattens slice recursive.</p>

 <b>函数签名:</b>
@@ -615,6 +617,7 @@ func main() {
 ```go
 func FlattenDeep(slice any) any
 ```
+
 <b>例子:</b>

 ```go
@@ -630,11 +633,8 @@ func main() {
 }
 ```

-
-
-
-
 ### <span id="ForEach">ForEach</span>
+
 <p>遍历切片的元素并为每个元素调用iteratee函数</p>

 <b>函数签名:</b>
@@ -642,6 +642,7 @@ func main() {
 ```go
 func ForEach[T any](slice []T, iteratee func(index int, item T))
 ```
+
 <b>例子:</b>

 ```go
@@ -660,10 +661,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="GroupBy">GroupBy</span>
+
 <p>迭代切片的元素，每个元素将按条件分组，返回两个切片</p>

 <b>函数签名:</b>
@@ -671,6 +670,7 @@ func main() {
 ```go
 func GroupBy[T any](slice []T, groupFn func(index int, item T) bool) ([]T, []T)
 ```
+
 <b>例子:</b>

 ```go
@@ -691,16 +691,16 @@ func main() {
 }
 ```

-
-
 ### <span id="GroupWith">GroupWith</span>
+
 <p>创建一个map，key是iteratee遍历slice中的每个元素返回的结果。 分组值的顺序是由他们出现在slice中的顺序确定的。每个键对应的值负责生成key的元素组成的数组。iteratee调用1个参数： (value)</p>

 <b>函数签名:</b>

 ```go
-func GroupWith[T any, U comparable](slice []T, iteratee func(T) U) map[U][]T 
+func GroupWith[T any, U comparable](slice []T, iteratee func(T) U) map[U][]T
 ```
+
 <b>例子:</b>

 ```go
@@ -719,8 +719,8 @@ func main() {
 }
 ```

-
 ### <span id="IntSlice">IntSlice</span>
+
 <p>将接口切片转换为int切片</p>

 <b>函数签名:</b>
@@ -728,6 +728,7 @@ func main() {
 ```go
 func IntSlice(slice any) []int
 ```
+
 <b>例子:</b>

 ```go
@@ -743,10 +744,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="InterfaceSlice">InterfaceSlice</span>
+
 <p>将值转换为接口切片</p>

 <b>函数签名:</b>
@@ -754,6 +753,7 @@ func main() {
 ```go
 func InterfaceSlice(slice any) []any
 ```
+
 <b>例子:</b>

 ```go
@@ -769,10 +769,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="Intersection">Intersection</span>
+
 <p>多个切片的交集</p>

 <b>函数签名:</b>
@@ -780,6 +778,7 @@ func main() {
 ```go
 func Intersection[T comparable](slices ...[]T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -797,10 +796,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="InsertAt">InsertAt</span>
+
 <p>将元素插入到索引处的切片中</p>

 <b>函数签名:</b>
@@ -808,6 +805,7 @@ func main() {
 ```go
 func InsertAt[T any](slice []T, index int, value any) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -818,7 +816,7 @@ import (

 func main() {
 	s := []string{"a", "b", "c"}
-	
+
 	res1, _ := slice.InsertAt(s, 0, "1")
 	fmt.Println(res1) //[]string{"1", "a", "b", "c"}

@@ -827,10 +825,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="IndexOf">IndexOf</span>
+
 <p>返回在切片中找到值的第一个匹配项的索引，如果找不到值，则返回-1</p>

 <b>函数签名:</b>
@@ -838,6 +834,7 @@ func main() {
 ```go
 func IndexOf[T comparable](slice []T, value T) int
 ```
+
 <b>例子:</b>

 ```go
@@ -856,9 +853,8 @@ func main() {
 }
 ```

-
-
 ### <span id="LastIndexOf">LastIndexOf</span>
+
 <p>返回在切片中找到最后一个值的索引，如果找不到该值，则返回-1</p>

 <b>函数签名:</b>
@@ -866,6 +862,7 @@ func main() {
 ```go
 func LastIndexOf[T comparable](slice []T, value T) int
 ```
+
 <b>例子:</b>

 ```go
@@ -884,9 +881,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Map">Map</span>
+
 <p>通过运行函数slice中的每个元素来创建一个新切片</p>

 <b>函数签名:</b>
@@ -894,6 +890,7 @@ func main() {
 ```go
 func Map[T any, U any](slice []T, iteratee func(index int, item T) U) []U
 ```
+
 <b>例子:</b>

 ```go
@@ -912,10 +909,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="Reverse">Reverse</span>
+
 <p>反转切片中的元素顺序</p>

 <b>函数签名:</b>
@@ -923,6 +918,7 @@ func main() {
 ```go
 func Reverse[T any](slice []T)
 ```
+
 <b>例子:</b>

 ```go
@@ -938,9 +934,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Reduce">Reduce</span>
+
 <p>将切片中的元素依次运行iteratee函数，返回运行结果</p>

 <b>函数签名:</b>
@@ -948,6 +943,7 @@ func main() {
 ```go
 func Reduce[T any](slice []T, iteratee func(index int, item1, item2 T) T, initial T) T
 ```
+
 <b>例子:</b>

 ```go
@@ -966,9 +962,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Replace">Replace</span>
+
 <p>返回切片的副本，其中前n个不重叠的old替换为new</p>

 <b>函数签名:</b>
@@ -976,6 +971,7 @@ func main() {
 ```go
 func Replace[T comparable](slice []T, old T, new T, n int) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -995,9 +991,8 @@ func main() {
 }
 ```

-
-
 ### <span id="ReplaceAll">ReplaceAll</span>
+
 <p>返回切片的副本，将其中old全部替换为new</p>

 <b>函数签名:</b>
@@ -1005,6 +1000,7 @@ func main() {
 ```go
 func ReplaceAll[T comparable](slice []T, old T, new T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -1022,9 +1018,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Shuffle">Shuffle</span>
+
 <p>随机打乱切片中的元素顺序</p>

 <b>函数签名:</b>
@@ -1032,6 +1027,7 @@ func main() {
 ```go
 func Shuffle[T any](slice []T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -1047,9 +1043,8 @@ func main() {
 }
 ```

-
-
 ### <span id="SortByField">SortByField</span>
+
 <p>按字段对结构切片进行排序。slice元素应为struct，字段类型应为int、uint、string或bool。 默认排序类型是升序（asc），如果是降序，设置 sortType 为 desc</p>

 <b>函数签名:</b>
@@ -1057,6 +1052,7 @@ func main() {
 ```go
 func SortByField(slice any, field string, sortType ...string) error
 ```
+
 <b>例子:</b>

 ```go
@@ -1080,7 +1076,7 @@ func main() {
 	if err != nil {
 		fmt.Println(err)
 	}
-	fmt.Println(students) 
+	fmt.Println(students)
 	// []students{
 	// 	{"b", 15},
 	// 	{"a", 10},
@@ -1090,9 +1086,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Some">Some</span>
+
 <p>如果列表中的任何值通过谓词函数，则返回true</p>

 <b>函数签名:</b>
@@ -1100,6 +1095,7 @@ func main() {
 ```go
 func Some[T any](slice []T, predicate func(index int, item T) bool) bool
 ```
+
 <b>例子:</b>

 ```go
@@ -1119,9 +1115,8 @@ func main() {
 }
 ```

-
-
 ### <span id="StringSlice">StringSlice</span>
+
 <p>将接口切片转换为字符串切片</p>

 <b>函数签名:</b>
@@ -1129,6 +1124,7 @@ func main() {
 ```go
 func StringSlice(slice any) []string
 ```
+
 <b>例子:</b>

 ```go
@@ -1144,10 +1140,8 @@ func main() {
 }
 ```

-
-
-
 ### <span id="SymmetricDifference">SymmetricDifference</span>
+
 <p>返回一个切片，其中的元素存在于参数切片中，但不同时存储在于参数切片中（交集取反）</p>

 <b>函数签名:</b>
@@ -1155,6 +1149,7 @@ func main() {
 ```go
 func SymmetricDifference[T comparable](slices ...[]T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -1174,8 +1169,8 @@ func main() {
 }
 ```

-
 ### <span id="ToSlice">ToSlice</span>
+
 <p>将可变参数转为切片</p>

 <b>函数签名:</b>
@@ -1183,6 +1178,7 @@ func main() {
 ```go
 func ToSlice[T any](value ...T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -1197,9 +1193,8 @@ func main() {
 }
 ```

-
-
 ### <span id="ToSlicePointer">ToSlicePointer</span>
+
 <p>将可变参数转为指针切片</p>

 <b>函数签名:</b>
@@ -1207,6 +1202,7 @@ func main() {
 ```go
 func ToSlicePointer[T any](value ...T) []*T
 ```
+
 <b>例子:</b>

 ```go
@@ -1223,9 +1219,8 @@ func main() {
 }
 ```

-
-
 ### <span id="Unique">Unique</span>
+
 <p>删除切片中的重复元素</p>

 <b>函数签名:</b>
@@ -1233,6 +1228,7 @@ func main() {
 ```go
 func Unique[T comparable](slice []T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -1247,9 +1243,8 @@ func main() {
 }
 ```

-
-
 ### <span id="UniqueBy">UniqueBy</span>
+
 <p>对切片的每个元素调用iteratee函数，然后删除重复元素</p>

 <b>函数签名:</b>
@@ -1257,6 +1252,7 @@ func main() {
 ```go
 func UniqueBy[T comparable](slice []T, iteratee func(item T) T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -1273,16 +1269,16 @@ func main() {
 }
 ```

-
-
 ### <span id="Union">Union</span>
-<p>从所有给定的切片按顺序创建一个唯一值切片，使用==进行相等比较</p>
+
+<p>合并多个切片.</p>

 <b>函数签名:</b>

 ```go
 func Union[T comparable](slices ...[]T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -1300,9 +1296,35 @@ func main() {
 }
 ```

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

+<p>对切片的每个元素调用函数后，合并多个切片</p>
+
+<b>函数签名:</b>
+
+```go
+func UnionBy[T any, V comparable](predicate func(item T) V, slices ...[]T) []T
+```
+
+<b>例子:</b>
+
+```go
+import (
+	"fmt"
+	"github.com/duke-git/lancet/v2/slice"
+)
+
+func main() {
+	testFunc := func(i int) int {
+		return i / 2
+	}
+	result := slice.UnionBy(testFunc, []int{0, 1, 2, 3, 4, 5}, []int{0, 2, 10})
+	fmt.Println(result) //[]int{0, 2, 4, 10}
+}
+```

 ### <span id="UpdateAt">UpdateAt</span>
+
 <p>更新索引处的切片元素。 如果index < 0或 index >= len(slice)，将返回错误</p>

 <b>函数签名:</b>
@@ -1310,6 +1332,7 @@ func main() {
 ```go
 func UpdateAt[T any](slice []T, index int, value T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -1320,16 +1343,14 @@ import (

 func main() {
 	s := []string{"a", "b", "c"}
-	
+
 	res1, _ := slice.UpdateAt(s, 0, "1")
 	fmt.Println(res1) //[]string{"1", "b", "c"}
 }
 ```

-
-
-
 ### <span id="Without">Without</span>
+
 <p>创建一个不包括所有给定值的切片</p>

 <b>函数签名:</b>
@@ -1337,6 +1358,7 @@ func main() {
 ```go
 func Without[T comparable](slice []T, values ...T) []T
 ```
+
 <b>例子:</b>

 ```go
@@ -1352,12 +1374,29 @@ func main() {
 ```


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

+<p>将切片每个元素调用函数后转为map</p>

+<b>函数签名:</b>

+```go
+func KeyBy[T any, U comparable](slice []T, iteratee func(item T) U) map[U]T
+```

+<b>例子:</b>

+```go
+import (
+	"fmt"
+	"github.com/duke-git/lancet/v2/slice"
+)

+func main() {
+	res := slice.KeyBy([]string{"a", "ab", "abc"}, func(str string) int {
+		return len(str)
+	})

-
-
+	fmt.Println(res) //map[int]string{1: "a", 2: "ab", 3: "abc"}
+}
+```
--- 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
@@ -221,6 +223,13 @@ func UnZip(zipFile string, destPath string) error {

 	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 +258,17 @@ 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/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
@@ -36,7 +36,7 @@ func ContainSubSlice[T comparable](slice, subslice []T) bool {

 // Chunk creates an 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
@@ -95,7 +95,8 @@ 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)
@@ -123,7 +124,7 @@ 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 {
+func DifferenceWith[T any](slice []T, comparedSlice []T, comparator func(value1, value2 T) bool) []T {
 	result := make([]T, 0)

 	getIndex := func(arr []T, item T, comparison func(v1, v2 T) bool) int {
@@ -180,11 +181,8 @@ 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++
@@ -196,9 +194,6 @@ func Every[T any](slice []T, predicate func(index int, item T) bool) bool {

 // 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
 	for i, v := range slice {
@@ -212,39 +207,30 @@ func None[T any](slice []T, predicate func(index int, item T) bool) bool {

 // 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)
 	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")
-	}
-
 	if len(slice) == 0 {
 		return 0
 	}
@@ -261,10 +247,6 @@ 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 +267,7 @@ 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 {
@@ -306,10 +284,6 @@ 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
 	}
@@ -332,10 +306,6 @@ 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
 	}
@@ -408,10 +378,6 @@ 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)
 	}
@@ -419,10 +385,6 @@ 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)
@@ -433,9 +395,6 @@ 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
@@ -604,12 +563,8 @@ 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
@@ -629,11 +584,8 @@ 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)
@@ -642,20 +594,39 @@ 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 values, 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 {
-		allElements = append(allElements, slice...)
+		for _, item := range slice {
+			if _, ok := contain[item]; !ok {
+				contain[item] = struct{}{}
+				result = append(result, item)
+			}
+		}
 	}

-	return Unique(allElements)
+	return result
+}
+
+// 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
 }

 // Intersection creates a slice of unique values that included by all slices.
@@ -667,8 +638,6 @@ 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 {
@@ -685,7 +654,7 @@ 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)
 	for i := 2; i < len(slices); i++ {
@@ -818,14 +787,14 @@ func Without[T comparable](slice []T, values ...T) []T {
 		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)
+			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
@@ -854,18 +823,20 @@ 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))
+	result := make([]*T, len(value))
 	for i := range value {
-		out[i] = &value[i]
+		result[i] = &value[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))
-	copy(out, value)
-	return out
+	result := make([]T, len(value))
+	copy(result, value)
+
+	return result
 }

 // AppendIfAbsent only absent append the value
@@ -875,3 +846,15 @@ func AppendIfAbsent[T comparable](slice []T, value T) []T {
 	}
 	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_test.go
+++ b/slice/slice_test.go
@@ -428,6 +428,17 @@ 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 TestIntersection(t *testing.T) {
 	s1 := []int{1, 2, 2, 3}
 	s2 := []int{1, 2, 3, 4}
@@ -644,3 +655,13 @@ func TestReplaceAll(t *testing.T) {
 	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"})
+}
Author	SHA1	Message	Date
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