release v1.3.5

add new function
fix: fix lint issue
2026-02-04 21:02:27 +08:00 · 2022-12-15 16:36:15 +08:00 · 2022-12-15 16:35:33 +08:00 · 2022-12-15 16:31:04 +08:00 · 2022-12-15 16:29:36 +08:00 · 2022-12-15 16:27:21 +08:00
32 changed files with 1508 additions and 752 deletions
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 <br/>

 ![Go version](https://img.shields.io/badge/go-v1.16-9cf)
-[![Release](https://img.shields.io/badge/release-1.3.2-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-1.3.5-green.svg)](https://github.com/duke-git/lancet/releases)
 [![GoDoc](https://godoc.org/github.com//duke-git/lancet?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet)
 [![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet)](https://goreportcard.com/report/github.com/duke-git/lancet)
 [![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)
@@ -23,10 +23,10 @@ English | [简体中文](./README_zh-CN.md)

 ## Feature

- 👏 Comprehensive, efficient and reusable.
- 💪 200+ 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.
+-   💪 200+ go util functions, support string, slice, datetime, net, crypt...
+-   💅 Only depend on the go standard library.
+-   🌍 Unit test for every exported function.

 ## Installation

@@ -62,25 +62,28 @@ func main() {
 ```

 ## API Documentation
+
 ### 1. Convertor package contains some functions for data convertion.

 ```go
 import "github.com/duke-git/lancet/convertor"
 ```
+
 #### Function list:
- [ColorHexToRGB](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ColorHexToRGB)
- [ColorRGBToHex](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ColorRGBToHex)
- [ToBool](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToBool)
- [ToBytes](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToBytes)
- [ToChar](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToChar)
- [ToChannel](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToChannel)
- [ToInt](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToInt)
- [ToJson](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToJson)
- [ToString](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToString)
- [StructToMap](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#StructToMap)
- [EncodeByte](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#EncodeByte)
- [DecodeByte](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#DecodeByte)
-  
+
+-   [ColorHexToRGB](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ColorHexToRGB)
+-   [ColorRGBToHex](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ColorRGBToHex)
+-   [ToBool](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToBool)
+-   [ToBytes](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToBytes)
+-   [ToChar](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToChar)
+-   [ToChannel](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToChannel)
+-   [ToInt](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToInt)
+-   [ToJson](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToJson)
+-   [ToString](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToString)
+-   [StructToMap](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#StructToMap)
+-   [EncodeByte](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#EncodeByte)
+-   [DecodeByte](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#DecodeByte)
+
 ### 2. Cryptor package is for data encryption and decryption.

 ```go
@@ -88,76 +91,78 @@ import "github.com/duke-git/lancet/cryptor"
 ```

 #### Function list:
- [AesEcbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesEcbEncrypt)
- [AesEcbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesEcbDecrypt)
- [AesCbcEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesCbcEncrypt)
- [AesCbcDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesCbcDecrypt)
- [AesCtrCrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesCtrCrypt)
- [AesCfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesCfbEncrypt)
- [AesCfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesCfbDecrypt)
- [AesOfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesOfbEncrypt)
- [AesOfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesOfbDecrypt)
- [Base64StdEncode](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#Base64StdEncode)
- [Base64StdDecode](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#Base64StdDecode)
- [DesEcbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesEcbEncrypt)
- [DesEcbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesEcbDecrypt)
- [DesCbcEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesCbcEncrypt)
- [DesCbcDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesCbcDecrypt)
- [DesCtrCrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesCtrCrypt)
- [DesCfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesCfbEncrypt)
- [DesCfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesCfbDecrypt)
- [DesOfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesOfbEncrypt)
- [DesOfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesOfbDecrypt)
- [HmacMd5](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#HmacMd5)
- [HmacSha1](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#HmacSha1)
- [HmacSha256](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#HmacSha256)
- [HmacSha512](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#HmacSha512)
- [Md5String](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#Md5String)
- [Md5File](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#Md5File)
- [Sha1](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#Sha1)
- [Sha256](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#Sha256)
- [Sha512](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#Sha512)
- [GenerateRsaKey](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#GenerateRsaKey)
- [RsaEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#RsaEncrypt)
- [RsaDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#RsaDecrypt)
+
+-   [AesEcbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesEcbEncrypt)
+-   [AesEcbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesEcbDecrypt)
+-   [AesCbcEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesCbcEncrypt)
+-   [AesCbcDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesCbcDecrypt)
+-   [AesCtrCrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesCtrCrypt)
+-   [AesCfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesCfbEncrypt)
+-   [AesCfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesCfbDecrypt)
+-   [AesOfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesOfbEncrypt)
+-   [AesOfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesOfbDecrypt)
+-   [Base64StdEncode](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#Base64StdEncode)
+-   [Base64StdDecode](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#Base64StdDecode)
+-   [DesEcbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesEcbEncrypt)
+-   [DesEcbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesEcbDecrypt)
+-   [DesCbcEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesCbcEncrypt)
+-   [DesCbcDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesCbcDecrypt)
+-   [DesCtrCrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesCtrCrypt)
+-   [DesCfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesCfbEncrypt)
+-   [DesCfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesCfbDecrypt)
+-   [DesOfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesOfbEncrypt)
+-   [DesOfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#DesOfbDecrypt)
+-   [HmacMd5](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#HmacMd5)
+-   [HmacSha1](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#HmacSha1)
+-   [HmacSha256](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#HmacSha256)
+-   [HmacSha512](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#HmacSha512)
+-   [Md5String](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#Md5String)
+-   [Md5File](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#Md5File)
+-   [Sha1](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#Sha1)
+-   [Sha256](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#Sha256)
+-   [Sha512](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#Sha512)
+-   [GenerateRsaKey](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#GenerateRsaKey)
+-   [RsaEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#RsaEncrypt)
+-   [RsaDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#RsaDecrypt)

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

-
 ```go
 import "github.com/duke-git/lancet/datetime"
 ```
+
 #### Function list:
- [AddDay](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#AddDay)
- [AddHour](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#AddHour)
- [AddMinute](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#AddMinute)
- [BeginOfMinute](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfMinute)
- [BeginOfHour](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfHour)
- [BeginOfDay](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfDay)
- [BeginOfWeek](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfWeek)
- [BeginOfMonth](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfMonth)
- [BeginOfYear](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfYear)
- [EndOfMinute](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfMinute)
- [EndOfHour](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfHour)
- [EndOfDay](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfDay)
- [EndOfWeek](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfWeek)
- [EndOfMonth](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfMonth)
- [EndOfYear](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfYear)
- [GetNowDate](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#GetNowDate)
- [GetNowTime](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#GetNowTime)
- [GetNowDateTime](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#GetNowDateTime)
- [GetZeroHourTimestamp](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#GetZeroHourTimestamp)
- [GetNightTimestamp](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#GetNightTimestamp)
- [FormatTimeToStr](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#FormatTimeToStr)
- [FormatStrToTime](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#FormatStrToTime)
- [NewUnix](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#NewUnix)
- [NewUnixNow](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#NewUnixNow)
- [NewFormat](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#NewFormat)
- [NewISO8601](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#NewISO8601)
- [ToUnix](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#ToUnix)
- [ToFormat](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#ToFormat)
- [ToFormatForTpl](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#ToFormatForTpl)
- [ToIso8601](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#ToIso8601)
+
+-   [AddDay](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#AddDay)
+-   [AddHour](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#AddHour)
+-   [AddMinute](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#AddMinute)
+-   [BeginOfMinute](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfMinute)
+-   [BeginOfHour](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfHour)
+-   [BeginOfDay](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfDay)
+-   [BeginOfWeek](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfWeek)
+-   [BeginOfMonth](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfMonth)
+-   [BeginOfYear](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfYear)
+-   [EndOfMinute](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfMinute)
+-   [EndOfHour](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfHour)
+-   [EndOfDay](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfDay)
+-   [EndOfWeek](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfWeek)
+-   [EndOfMonth](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfMonth)
+-   [EndOfYear](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfYear)
+-   [GetNowDate](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#GetNowDate)
+-   [GetNowTime](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#GetNowTime)
+-   [GetNowDateTime](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#GetNowDateTime)
+-   [GetZeroHourTimestamp](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#GetZeroHourTimestamp)
+-   [GetNightTimestamp](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#GetNightTimestamp)
+-   [FormatTimeToStr](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#FormatTimeToStr)
+-   [FormatStrToTime](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#FormatStrToTime)
+-   [NewUnix](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#NewUnix)
+-   [NewUnixNow](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#NewUnixNow)
+-   [NewFormat](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#NewFormat)
+-   [NewISO8601](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#NewISO8601)
+-   [ToUnix](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#ToUnix)
+-   [ToFormat](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#ToFormat)
+-   [ToFormatForTpl](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#ToFormatForTpl)
+-   [ToIso8601](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#ToIso8601)

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

@@ -167,29 +172,31 @@ import "github.com/duke-git/lancet/fileutil"

 #### Function list：

- [ClearFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#ClearFile)
- [CreateFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#CreateFile)
- [CreateDir](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#CreateDir)
- [CopyFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#CopyFile)
- [FileMode](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#FileMode)
- [MiMeType](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#MiMeType)
- [IsExist](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#IsExist)
- [IsLink](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#IsLink)
- [IsDir](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#IsDir)
- [ListFileNames](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#ListFileNames)
- [RemoveFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#RemoveFile)
- [ReadFileToString](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#ReadFileToString)
- [ReadFileByLine](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#ReadFileByLine)
- [Zip](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#Zip)
- [UnZip](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#UnZip)
+-   [ClearFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#ClearFile)
+-   [CreateFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#CreateFile)
+-   [CreateDir](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#CreateDir)
+-   [CopyFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#CopyFile)
+-   [FileMode](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#FileMode)
+-   [MiMeType](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#MiMeType)
+-   [IsExist](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#IsExist)
+-   [IsLink](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#IsLink)
+-   [IsDir](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#IsDir)
+-   [ListFileNames](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#ListFileNames)
+-   [RemoveFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#RemoveFile)
+-   [ReadFileToString](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#ReadFileToString)
+-   [ReadFileByLine](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#ReadFileByLine)
+-   [Zip](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#Zip)
+-   [UnZip](https://github.com/duke-git/lancet/blob/v1/docs/fileutil.md#UnZip)

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

 ```go
 import "github.com/duke-git/lancet/formatter"
 ```
+
 #### Function list:
- [Comma](https://github.com/duke-git/lancet/blob/v1/docs/formatter.md#Comma)
+
+-   [Comma](https://github.com/duke-git/lancet/blob/v1/docs/formatter.md#Comma)

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

@@ -198,14 +205,14 @@ import "github.com/duke-git/lancet/function"
 ```

 #### Function list:
- [After](https://github.com/duke-git/lancet/blob/v1/docs/function.md#After)
- [Before](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Before)
- [Curry](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Curry)
- [Compose](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Compose)
- [Debounced](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Debounced)
- [Delay](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Delay)
- [Watcher](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Watcher)

+-   [After](https://github.com/duke-git/lancet/blob/v1/docs/function.md#After)
+-   [Before](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Before)
+-   [Curry](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Curry)
+-   [Compose](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Compose)
+-   [Debounced](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Debounced)
+-   [Delay](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Delay)
+-   [Watcher](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Watcher)

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

@@ -214,14 +221,14 @@ import "github.com/duke-git/lancet/mathutil"
 ```

 #### Function list:
- [Exponent](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#Exponent)
- [Fibonacci](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#Fibonacci)
- [Factorial](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#Factorial)
- [Percent](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#Percent)
- [RoundToFloat](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#RoundToFloat)
- [RoundToString](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#RoundToString)
- [TruncRound](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#TruncRound)

+-   [Exponent](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#Exponent)
+-   [Fibonacci](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#Fibonacci)
+-   [Factorial](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#Factorial)
+-   [Percent](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#Percent)
+-   [RoundToFloat](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#RoundToFloat)
+-   [RoundToString](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#RoundToString)
+-   [TruncRound](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#TruncRound)

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

@@ -230,22 +237,22 @@ import "github.com/duke-git/lancet/netutil"
 ```

 #### Function list:
- [ConvertMapToQueryString](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#ConvertMapToQueryString)
- [EncodeUrl](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#EncodeUrl)
- [GetInternalIp](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetInternalIp)
- [GetIps](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetIps)
- [GetMacAddrs](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetMacAddrs)
- [GetPublicIpInfo](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetPublicIpInfo)
- [GetRequestPublicIp](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetRequestPublicIp)
- [IsPublicIP](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#IsPublicIP)
- [IsInternalIP](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#IsInternalIP)
- [HttpGet](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#HttpGet)
- [HttpDelete](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#HttpDelete)
- [HttpPost](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#HttpPost)
- [HttpPut](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#HttpPut)
- [HttpPatch](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#HttpPatch)
- [ParseHttpResponse](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#ParseHttpResponse)

+-   [ConvertMapToQueryString](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#ConvertMapToQueryString)
+-   [EncodeUrl](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#EncodeUrl)
+-   [GetInternalIp](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetInternalIp)
+-   [GetIps](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetIps)
+-   [GetMacAddrs](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetMacAddrs)
+-   [GetPublicIpInfo](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetPublicIpInfo)
+-   [GetRequestPublicIp](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetRequestPublicIp)
+-   [IsPublicIP](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#IsPublicIP)
+-   [IsInternalIP](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#IsInternalIP)
+-   [HttpGet](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#HttpGet)
+-   [HttpDelete](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#HttpDelete)
+-   [HttpPost](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#HttpPost)
+-   [HttpPut](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#HttpPut)
+-   [HttpPatch](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#HttpPatch)
+-   [ParseHttpResponse](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#ParseHttpResponse)

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

@@ -254,10 +261,15 @@ import "github.com/duke-git/lancet/random"
 ```

 #### Function list:
- [RandBytes](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandBytes)
- [RandInt](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandInt)
- [RandString](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandString)
- [UUIdV4](https://github.com/duke-git/lancet/blob/v1/docs/random.md#UUIdV4)
+
+-   [RandBytes](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandBytes)
+-   [RandInt](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandInt)
+-   [RandString](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandString)
+-   [RandUpper](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandUpper)
+-   [RandLower](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandLower)
+-   [RandNumeral](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandNumeral)
+-   [RandNumeralOrLetter](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandNumeralOrLetter)
+-   [UUIdV4](https://github.com/duke-git/lancet/blob/v1/docs/random.md#UUIdV4)

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

@@ -266,11 +278,12 @@ import "github.com/duke-git/lancet/retry"
 ```

 #### Function list:
- [Context](https://github.com/duke-git/lancet/blob/v1/docs/retry.md#Context)
- [Retry](https://github.com/duke-git/lancet/blob/v1/docs/retry.md#Retry)
- [RetryFunc](https://github.com/duke-git/lancet/blob/v1/docs/retry.md#RetryFunc)
- [RetryDuration](https://github.com/duke-git/lancet/blob/v1/docs/retry.md#RetryDuration)
- [RetryTimes](https://github.com/duke-git/lancet/blob/v1/docs/retry.md#RetryTimes)
+
+-   [Context](https://github.com/duke-git/lancet/blob/v1/docs/retry.md#Context)
+-   [Retry](https://github.com/duke-git/lancet/blob/v1/docs/retry.md#Retry)
+-   [RetryFunc](https://github.com/duke-git/lancet/blob/v1/docs/retry.md#RetryFunc)
+-   [RetryDuration](https://github.com/duke-git/lancet/blob/v1/docs/retry.md#RetryDuration)
+-   [RetryTimes](https://github.com/duke-git/lancet/blob/v1/docs/retry.md#RetryTimes)

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

@@ -279,46 +292,47 @@ import "github.com/duke-git/lancet/slice"
 ```

 #### Function list:
- [AppendIfAbsent](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#AppendIfAbsent)
- [Contain](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Contain)
- [ContainSubSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#ContainSubSlice)
- [Chunk](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Chunk)
- [Compact](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Compact)
- [Concat](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Concat)
- [Count](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Count)
- [Difference](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Difference)
- [DifferenceBy](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#DifferenceBy)
- [DeleteByIndex](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#DeleteByIndex)
- [Drop](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Drop)
- [Every](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Every)
- [Equal](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Equal)
- [EqualWith](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#EqualWith)
- [Filter](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Filter)
- [Find](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Find)
- [FindLast](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#FindLast)
- [FlattenDeep](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#FlattenDeep)
- [ForEach](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#ForEach)
- [GroupBy](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#GroupBy)
- [IntSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#IntSlice)
- [IndexOf](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#IndexOf)
- [LastIndexOf](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#LastIndexOf)
- [InterfaceSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#InterfaceSlice)
- [Intersection](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Intersection)
- [InsertByIndex](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#InsertByIndex)
- [Map](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Map)
- [ReverseSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#ReverseSlice)
- [Reduce](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Reduce)
- [Shuffle](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Shuffle)
- [SortByField](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#SortByField)
- [Some](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Some)
- [StringSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#StringSlice)
- [ToSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#ToSlice)
- [ToSlicePointer](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#ToSlice)
- [Unique](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Unique)
- [UniqueBy](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#UniqueBy)
- [Union](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Union)
- [UpdateByIndex](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#UpdateByIndex)
- [Without](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Without)
+
+-   [AppendIfAbsent](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#AppendIfAbsent)
+-   [Contain](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Contain)
+-   [ContainSubSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#ContainSubSlice)
+-   [Chunk](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Chunk)
+-   [Compact](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Compact)
+-   [Concat](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Concat)
+-   [Count](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Count)
+-   [Difference](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Difference)
+-   [DifferenceBy](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#DifferenceBy)
+-   [DeleteByIndex](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#DeleteByIndex)
+-   [Drop](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Drop)
+-   [Every](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Every)
+-   [Equal](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Equal)
+-   [EqualWith](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#EqualWith)
+-   [Filter](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Filter)
+-   [Find](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Find)
+-   [FindLast](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#FindLast)
+-   [FlattenDeep](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#FlattenDeep)
+-   [ForEach](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#ForEach)
+-   [GroupBy](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#GroupBy)
+-   [IntSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#IntSlice)
+-   [IndexOf](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#IndexOf)
+-   [LastIndexOf](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#LastIndexOf)
+-   [InterfaceSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#InterfaceSlice)
+-   [Intersection](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Intersection)
+-   [InsertByIndex](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#InsertByIndex)
+-   [Map](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Map)
+-   [ReverseSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#ReverseSlice)
+-   [Reduce](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Reduce)
+-   [Shuffle](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Shuffle)
+-   [SortByField](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#SortByField)
+-   [Some](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Some)
+-   [StringSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#StringSlice)
+-   [ToSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#ToSlice)
+-   [ToSlicePointer](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#ToSlice)
+-   [Unique](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Unique)
+-   [UniqueBy](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#UniqueBy)
+-   [Union](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Union)
+-   [UpdateByIndex](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#UpdateByIndex)
+-   [Without](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Without)

 ### 11. Strutil package contains some functions to manipulate string.

@@ -328,24 +342,26 @@ import "github.com/duke-git/lancet/strutil"

 #### Function list:

- [After](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#After)
- [AfterLast](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#AfterLast)
- [Before](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Before)
- [BeforeLast](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#BeforeLast)
- [CamelCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#CamelCase)
- [Capitalize](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Capitalize)
- [IsString](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#IsString)
- [KebabCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#KebabCase)
- [LowerFirst](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#LowerFirst)
- [UpperFirst](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#UpperFirst)
- [PadEnd](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#PadEnd)
- [PadStart](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#PadStart)
- [Reverse](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Reverse)
- [SnakeCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#SnakeCase)
- [SplitEx](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#SplitEx)
- [Wrap](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Wrap)
- [Unwrap](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Unwrap)
-  
+-   [After](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#After)
+-   [AfterLast](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#AfterLast)
+-   [Before](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Before)
+-   [BeforeLast](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#BeforeLast)
+-   [CamelCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#CamelCase)
+-   [Capitalize](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Capitalize)
+-   [IsString](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#IsString)
+-   [KebabCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#KebabCase)
+-   [UpperKebabCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#UpperKebabCase)
+-   [LowerFirst](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#LowerFirst)
+-   [UpperFirst](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#UpperFirst)
+-   [PadEnd](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#PadEnd)
+-   [PadStart](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#PadStart)
+-   [Reverse](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Reverse)
+-   [SnakeCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#SnakeCase)
+-   [UpperSnakeCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#UpperSnakeCase)
+-   [SplitEx](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#SplitEx)
+-   [Wrap](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Wrap)
+-   [Unwrap](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Unwrap)
+
 ### 12. System package contain some functions about os, runtime, shell command.

 ```go
@@ -353,51 +369,53 @@ import "github.com/duke-git/lancet/system"
 ```

 #### Function list:
- [IsWindows](https://github.com/duke-git/lancet/blob/v1/docs/system.md#IsWindows)
- [IsLinux](https://github.com/duke-git/lancet/blob/v1/docs/system.md#IsLinux)
- [IsMac](https://github.com/duke-git/lancet/blob/v1/docs/system.md#IsMac)
- [GetOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system.md#GetOsEnv)
- [SetOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system.md#SetOsEnv)
- [RemoveOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system.md#RemoveOsEnv)
- [CompareOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system.md#CompareOsEnv)
- [ExecCommand](https://github.com/duke-git/lancet/blob/v1/docs/system.md#ExecCommand)
- [GetOsBits](https://github.com/duke-git/lancet/blob/v1/docs/system.md#GetOsBits)
+
+-   [IsWindows](https://github.com/duke-git/lancet/blob/v1/docs/system.md#IsWindows)
+-   [IsLinux](https://github.com/duke-git/lancet/blob/v1/docs/system.md#IsLinux)
+-   [IsMac](https://github.com/duke-git/lancet/blob/v1/docs/system.md#IsMac)
+-   [GetOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system.md#GetOsEnv)
+-   [SetOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system.md#SetOsEnv)
+-   [RemoveOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system.md#RemoveOsEnv)
+-   [CompareOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system.md#CompareOsEnv)
+-   [ExecCommand](https://github.com/duke-git/lancet/blob/v1/docs/system.md#ExecCommand)
+-   [GetOsBits](https://github.com/duke-git/lancet/blob/v1/docs/system.md#GetOsBits)

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

 ```go
 import "github.com/duke-git/lancet/validator"
 ```
+
 #### Function list:

- [ContainChinese](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#ContainChinese)
- [ContainLetter](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#ContainLetter)
- [ContainLower](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#ContainLower)
- [ContainUpper](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#ContainUpper)
- [IsAlpha](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsAlpha)
- [IsAllUpper](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsAllUpper)
- [IsAllLower](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsAllLower)
- [IsBase64](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsBase64)
- [IsChineseMobile](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsChineseMobile)
- [IsChineseIdNum](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsChineseIdNum)
- [IsChinesePhone](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsChinesePhone)
- [IsCreditCard](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsCreditCard)
- [IsDns](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsDns)
- [IsEmail](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsEmail)
- [IsEmptyString](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsEmptyString)
- [IsFloatStr](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsFloatStr)
- [IsNumberStr](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsNumberStr)
- [IsJSON](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsJSON)
- [IsRegexMatch](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsRegexMatch)
- [IsIntStr](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsIntStr)
- [IsIp](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsIp)
- [IsIpV4](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsIpV4)
- [IsIpV6](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsIpV6)
- [IsStrongPassword](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsStrongPassword)
- [IsUrl](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsUrl)
- [IsWeakPassword](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsWeakPassword)
- [IsZeroValue](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsZeroValue)
-  
+-   [ContainChinese](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#ContainChinese)
+-   [ContainLetter](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#ContainLetter)
+-   [ContainLower](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#ContainLower)
+-   [ContainUpper](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#ContainUpper)
+-   [IsAlpha](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsAlpha)
+-   [IsAllUpper](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsAllUpper)
+-   [IsAllLower](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsAllLower)
+-   [IsBase64](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsBase64)
+-   [IsChineseMobile](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsChineseMobile)
+-   [IsChineseIdNum](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsChineseIdNum)
+-   [IsChinesePhone](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsChinesePhone)
+-   [IsCreditCard](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsCreditCard)
+-   [IsDns](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsDns)
+-   [IsEmail](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsEmail)
+-   [IsEmptyString](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsEmptyString)
+-   [IsFloatStr](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsFloatStr)
+-   [IsNumberStr](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsNumberStr)
+-   [IsJSON](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsJSON)
+-   [IsRegexMatch](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsRegexMatch)
+-   [IsIntStr](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsIntStr)
+-   [IsIp](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsIp)
+-   [IsIpV4](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsIpV4)
+-   [IsIpV6](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsIpV6)
+-   [IsStrongPassword](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsStrongPassword)
+-   [IsUrl](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsUrl)
+-   [IsWeakPassword](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsWeakPassword)
+-   [IsZeroValue](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsZeroValue)
+-   [IsGBK](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsGBK)

 ## How to Contribute

@@ -407,4 +425,4 @@ I really appreciate any code commits which make lancet lib powerful. Please foll
 2. Create your feature branch.
 3. Commit your changes.
 4. Push to the branch
-5. Create new pull request.
+5. Create new pull request.
--- a/README_zh-CN.md
+++ b/README_zh-CN.md
@@ -4,7 +4,7 @@
 <br/>

 ![Go version](https://img.shields.io/badge/go-v1.16-9cf)
-[![Release](https://img.shields.io/badge/release-1.3.2-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-1.3.5-green.svg)](https://github.com/duke-git/lancet/releases)
 [![GoDoc](https://godoc.org/github.com//duke-git/lancet?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet)
 [![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet)](https://goreportcard.com/report/github.com/duke-git/lancet)
 [![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)
@@ -20,13 +20,12 @@

 简体中文 | [English](./README.md)

-
 ## 特性

- 👏 全面、高效、可复用
- 💪 200+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
+-   💪 200+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

@@ -36,7 +35,7 @@ go get github.com/duke-git/lancet

 ## 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/strutil"
@@ -44,7 +43,7 @@ import "github.com/duke-git/lancet/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
@@ -61,104 +60,110 @@ func main() {
 }
 ```

-## API文档
-### 1. convertor转换器包支持一些常见的数据类型转换。
+## API 文档
+
+### 1. 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/convertor"
 ```
+
 #### 函数列表:
- [ColorHexToRGB](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ColorHexToRGB)
- [ColorRGBToHex](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ColorRGBToHex)
- [ToBool](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToBool)
- [ToBytes](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToBytes)
- [ToChar](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToChar)
- [ToChannel](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToChannel)
- [ToInt](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToInt)
- [ToJson](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToJson)
- [ToString](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToString)
- [StructToMap](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#StructToMap)
- [EncodeByte](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#EncodeByte)
- [DecodeByte](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#DecodeByte)
-  
-### 2. 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/v1/docs/convertor_zh-CN.md#ColorHexToRGB)
+-   [ColorRGBToHex](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ColorRGBToHex)
+-   [ToBool](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToBool)
+-   [ToBytes](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToBytes)
+-   [ToChar](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToChar)
+-   [ToChannel](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToChannel)
+-   [ToInt](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToInt)
+-   [ToJson](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToJson)
+-   [ToString](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToString)
+-   [StructToMap](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#StructToMap)
+-   [EncodeByte](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#EncodeByte)
+-   [DecodeByte](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#DecodeByte)
+
+### 2. 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/cryptor"
 ```

 #### 函数列表:
- [AesEcbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesEcbEncrypt)
- [AesEcbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesEcbDecrypt)
- [AesCbcEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesCbcEncrypt)
- [AesCbcDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesCbcDecrypt)
- [AesCtrCrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesCtrCrypt)
- [AesCfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesCfbEncrypt)
- [AesCfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesCfbDecrypt)
- [AesOfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesOfbEncrypt)
- [AesOfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesOfbDecrypt)
- [Base64StdEncode](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#Base64StdEncode)
- [Base64StdDecode](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#Base64StdDecode)
- [DesEcbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesEcbEncrypt)
- [DesEcbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesEcbDecrypt)
- [DesCbcEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesCbcEncrypt)
- [DesCbcDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesCbcDecrypt)
- [DesCtrCrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesCtrCrypt)
- [DesCfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesCfbEncrypt)
- [DesCfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesCfbDecrypt)
- [DesOfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesOfbEncrypt)
- [DesOfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesOfbDecrypt)
- [HmacMd5](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#HmacMd5)
- [HmacSha1](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#HmacSha1)
- [HmacSha256](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#HmacSha256)
- [HmacSha512](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#HmacSha512)
- [Md5String](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#Md5String)
- [Md5File](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#Md5File)
- [Sha1](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#Sha1)
- [Sha256](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#Sha256)
- [Sha512](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#Sha512)
- [GenerateRsaKey](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#GenerateRsaKey)
- [RsaEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#RsaEncrypt)
- [RsaDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#RsaDecrypt)

-### 3. 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/v1/docs/cryptor_zh-CN.md#AesEcbEncrypt)
+-   [AesEcbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesEcbDecrypt)
+-   [AesCbcEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesCbcEncrypt)
+-   [AesCbcDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesCbcDecrypt)
+-   [AesCtrCrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesCtrCrypt)
+-   [AesCfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesCfbEncrypt)
+-   [AesCfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesCfbDecrypt)
+-   [AesOfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesOfbEncrypt)
+-   [AesOfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesOfbDecrypt)
+-   [Base64StdEncode](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#Base64StdEncode)
+-   [Base64StdDecode](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#Base64StdDecode)
+-   [DesEcbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesEcbEncrypt)
+-   [DesEcbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesEcbDecrypt)
+-   [DesCbcEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesCbcEncrypt)
+-   [DesCbcDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesCbcDecrypt)
+-   [DesCtrCrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesCtrCrypt)
+-   [DesCfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesCfbEncrypt)
+-   [DesCfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesCfbDecrypt)
+-   [DesOfbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesOfbEncrypt)
+-   [DesOfbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#DesOfbDecrypt)
+-   [HmacMd5](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#HmacMd5)
+-   [HmacSha1](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#HmacSha1)
+-   [HmacSha256](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#HmacSha256)
+-   [HmacSha512](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#HmacSha512)
+-   [Md5String](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#Md5String)
+-   [Md5File](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#Md5File)
+-   [Sha1](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#Sha1)
+-   [Sha256](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#Sha256)
+-   [Sha512](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#Sha512)
+-   [GenerateRsaKey](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#GenerateRsaKey)
+-   [RsaEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#RsaEncrypt)
+-   [RsaDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#RsaDecrypt)

+### 3. datetime 日期时间处理包，格式化日期，比较日期。

 ```go
 import "github.com/duke-git/lancet/datetime"
 ```
+
 #### 函数列表:
- [AddDay](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#AddDay)
- [AddHour](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#AddHour)
- [AddMinute](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#AddMinute)
- [BeginOfMinute](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfMinute)
- [BeginOfHour](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfHour)
- [BeginOfDay](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfDay)
- [BeginOfWeek](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfWeek)
- [BeginOfMonth](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfMonth)
- [BeginOfYear](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfYear)
- [EndOfMinute](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfMinute)
- [EndOfHour](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfHour)
- [EndOfDay](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfDay)
- [EndOfWeek](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfWeek)
- [EndOfMonth](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfMonth)
- [EndOfYear](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfYear)
- [GetNowDate](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#GetNowDate)
- [GetNowTime](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#GetNowTime)
- [GetNowDateTime](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#GetNowDateTime)
- [GetZeroHourTimestamp](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#GetZeroHourTimestamp)
- [GetNightTimestamp](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#GetNightTimestamp)
- [FormatTimeToStr](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#FormatTimeToStr)
- [FormatStrToTime](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#FormatStrToTime)
- [NewUnix](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#NewUnix)
- [NewUnixNow](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#NewUnixNow)
- [NewFormat](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#NewFormat)
- [NewISO8601](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#NewISO8601)
- [ToUnix](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#ToUnix)
- [ToFormat](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#ToFormat)
- [ToFormatForTpl](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#ToFormatForTpl)
- [ToIso8601](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#ToIso8601)
-### 4. fileutil包支持文件基本操作。
+
+-   [AddDay](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#AddDay)
+-   [AddHour](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#AddHour)
+-   [AddMinute](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#AddMinute)
+-   [BeginOfMinute](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfMinute)
+-   [BeginOfHour](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfHour)
+-   [BeginOfDay](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfDay)
+-   [BeginOfWeek](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfWeek)
+-   [BeginOfMonth](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfMonth)
+-   [BeginOfYear](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#BeginOfYear)
+-   [EndOfMinute](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfMinute)
+-   [EndOfHour](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfHour)
+-   [EndOfDay](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfDay)
+-   [EndOfWeek](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfWeek)
+-   [EndOfMonth](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfMonth)
+-   [EndOfYear](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#EndOfYear)
+-   [GetNowDate](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#GetNowDate)
+-   [GetNowTime](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#GetNowTime)
+-   [GetNowDateTime](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#GetNowDateTime)
+-   [GetZeroHourTimestamp](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#GetZeroHourTimestamp)
+-   [GetNightTimestamp](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#GetNightTimestamp)
+-   [FormatTimeToStr](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#FormatTimeToStr)
+-   [FormatStrToTime](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#FormatStrToTime)
+-   [NewUnix](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#NewUnix)
+-   [NewUnixNow](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#NewUnixNow)
+-   [NewFormat](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#NewFormat)
+-   [NewISO8601](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#NewISO8601)
+-   [ToUnix](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#ToUnix)
+-   [ToFormat](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#ToFormat)
+-   [ToFormatForTpl](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#ToFormatForTpl)
+-   [ToIso8601](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#ToIso8601)
+
+### 4. fileutil 包支持文件基本操作。

 ```go
 import "github.com/duke-git/lancet/fileutil"
@@ -166,159 +171,169 @@ import "github.com/duke-git/lancet/fileutil"

 #### 函数列表：

- [ClearFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#ClearFile)
- [CreateFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#CreateFile)
- [CreateDir](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#CreateDir)
- [CopyFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#CopyFile)
- [FileMode](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#FileMode)
- [MiMeType](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#MiMeType)
- [IsExist](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#IsExist)
- [IsLink](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#IsLink)
- [IsDir](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#IsDir)
- [ListFileNames](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#ListFileNames)
- [RemoveFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#RemoveFile)
- [ReadFileToString](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#ReadFileToString)
- [ReadFileByLine](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#ReadFileByLine)
- [Zip](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#Zip)
- [UnZip](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#UnZip)
+-   [ClearFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#ClearFile)
+-   [CreateFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#CreateFile)
+-   [CreateDir](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#CreateDir)
+-   [CopyFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#CopyFile)
+-   [FileMode](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#FileMode)
+-   [MiMeType](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#MiMeType)
+-   [IsExist](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#IsExist)
+-   [IsLink](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#IsLink)
+-   [IsDir](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#IsDir)
+-   [ListFileNames](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#ListFileNames)
+-   [RemoveFile](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#RemoveFile)
+-   [ReadFileToString](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#ReadFileToString)
+-   [ReadFileByLine](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#ReadFileByLine)
+-   [Zip](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#Zip)
+-   [UnZip](https://github.com/duke-git/lancet/blob/v1/docs/fileutil_zh-CN.md#UnZip)

-### 5. formatter格式化器包含一些数据格式化处理方法。
+### 5. 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/formatter"
 ```
+
 #### 函数列表:
- [Comma](https://github.com/duke-git/lancet/blob/v1/docs/formatter_zh-CN.md#Comma)

+-   [Comma](https://github.com/duke-git/lancet/blob/v1/docs/formatter_zh-CN.md#Comma)

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

 #### 函数列表:
- [After](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#After)
- [Before](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Before)
- [Curry](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Curry)
- [Compose](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Compose)
- [Debounced](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Debounced)
- [Delay](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Delay)
- [Watcher](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Watcher)

-### 6. mathutil包实现了一些数学计算的函数。
+-   [After](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#After)
+-   [Before](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Before)
+-   [Curry](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Curry)
+-   [Compose](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Compose)
+-   [Debounced](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Debounced)
+-   [Delay](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Delay)
+-   [Watcher](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Watcher)
+
+### 6. mathutil 包实现了一些数学计算的函数。

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

 #### Function list:
- [Exponent](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#Exponent)
- [Fibonacci](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#Fibonacci)
- [Factorial](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#Factorial)
- [Percent](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#Percent)
- [RoundToFloat](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#RoundToFloat)
- [RoundToString](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#RoundToString)
- [TruncRound](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#TruncRound)

-### 7. netutil网络包支持获取ip地址，发送http请求。
+-   [Exponent](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#Exponent)
+-   [Fibonacci](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#Fibonacci)
+-   [Factorial](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#Factorial)
+-   [Percent](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#Percent)
+-   [RoundToFloat](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#RoundToFloat)
+-   [RoundToString](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#RoundToString)
+-   [TruncRound](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#TruncRound)
+
+### 7. netutil 网络包支持获取 ip 地址，发送 http 请求。

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

 #### 函数列表:
- [ConvertMapToQueryString](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#ConvertMapToQueryString)
- [EncodeUrl](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#EncodeUrl)
- [GetInternalIp](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#GetInternalIp)
- [GetIps](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetIps)
- [GetMacAddrs](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetMacAddrs)
- [GetPublicIpInfo](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#GetPublicIpInfo)
- [GetRequestPublicIp](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#GetRequestPublicIp)
- [IsPublicIP](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#IsPublicIP)
- [IsInternalIP](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#IsInternalIP)
- [HttpGet](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#HttpGet)
- [HttpDelete](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#HttpDelete)
- [HttpPost](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#HttpPost)
- [HttpPut](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#HttpPut)
- [HttpPatch](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#HttpPatch)
- [ParseHttpResponse](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#ParseHttpResponse)

-### 8. random随机数生成器包，可以生成随机[]bytes, int, string。
+-   [ConvertMapToQueryString](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#ConvertMapToQueryString)
+-   [EncodeUrl](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#EncodeUrl)
+-   [GetInternalIp](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#GetInternalIp)
+-   [GetIps](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetIps)
+-   [GetMacAddrs](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetMacAddrs)
+-   [GetPublicIpInfo](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#GetPublicIpInfo)
+-   [GetRequestPublicIp](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#GetRequestPublicIp)
+-   [IsPublicIP](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#IsPublicIP)
+-   [IsInternalIP](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#IsInternalIP)
+-   [HttpGet](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#HttpGet)
+-   [HttpDelete](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#HttpDelete)
+-   [HttpPost](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#HttpPost)
+-   [HttpPut](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#HttpPut)
+-   [HttpPatch](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#HttpPatch)
+-   [ParseHttpResponse](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#ParseHttpResponse)
+
+### 8. random 随机数生成器包，可以生成随机[]bytes, int, string。

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

 #### 函数列表:
- [RandBytes](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandBytes)
- [RandInt](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandInt)
- [RandString](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandString)
- [UUIdV4](https://github.com/duke-git/lancet/blob/v1/docs/random.md#UUIdV4)
-### 9. 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/v1/docs/random_zh-CN.md#RandBytes)
+-   [RandInt](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandInt)
+-   [RandString](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandString)
+-   [RandUpper](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandUpper)
+-   [RandLower](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandLower)
+-   [RandNumeral](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandNumeral)
+-   [RandNumeralOrLetter](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandNumeralOrLetter)
+-   [UUIdV4](https://github.com/duke-git/lancet/blob/v1/docs/random.md#UUIdV4)
+
+### 9. 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/retry"
 ```

 #### 函数列表:
- [Context](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#Context)
- [Retry](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#Retry)
- [RetryFunc](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#RetryFunc)
- [RetryDuration](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#RetryDuration)
- [RetryTimes](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#RetryTimes)

+-   [Context](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#Context)
+-   [Retry](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#Retry)
+-   [RetryFunc](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#RetryFunc)
+-   [RetryDuration](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#RetryDuration)
+-   [RetryTimes](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#RetryTimes)

-### 10. slice包包含操作切片的方法集合。
+### 10. slice 包包含操作切片的方法集合。

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

 #### 函数列表:
- [AppendIfAbsent](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#AppendIfAbsent)
- [Contain](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Contain)
- [ContainSubSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#ContainSubSlice)
- [Chunk](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Chunk)
- [Compact](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Compact)
- [Concat](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Concat)
- [Count](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Count)
- [Difference](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Difference)
- [DifferenceBy](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#DifferenceBy)
- [DeleteByIndex](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#DeleteByIndex)
- [Drop](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Drop)
- [Every](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Every)
- [Equal](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Equal)
- [EqualWith](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#EqualWith)
- [Filter](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Filter)
- [Find](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Find)
- [FindLast](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#FindLast)
- [FlattenDeep](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#FlattenDeep)
- [ForEach](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#ForEach)
- [GroupBy](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#GroupBy)
- [IntSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#IntSlice)
- [IndexOf](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#IndexOf)
- [LastIndexOf](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#LastIndexOf)
- [InterfaceSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#InterfaceSlice)
- [Intersection](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Intersection)
- [InsertByIndex](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#InsertByIndex)
- [Map](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Map)
- [ReverseSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#ReverseSlice)
- [Reduce](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Reduce)
- [Shuffle](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Shuffle)
- [SortByField](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#SortByField)
- [Some](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Some)
- [StringSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#StringSlice)
- [ToSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#ToSlice)
- [ToSlicePointer](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#ToSlice)
- [Unique](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Unique)
- [UniqueBy](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#UniqueBy)
- [Union](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Union)
- [UpdateByIndex](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#UpdateByIndex)
- [Without](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Without)

+-   [AppendIfAbsent](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#AppendIfAbsent)
+-   [Contain](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Contain)
+-   [ContainSubSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#ContainSubSlice)
+-   [Chunk](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Chunk)
+-   [Compact](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Compact)
+-   [Concat](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Concat)
+-   [Count](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Count)
+-   [Difference](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Difference)
+-   [DifferenceBy](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#DifferenceBy)
+-   [DeleteByIndex](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#DeleteByIndex)
+-   [Drop](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Drop)
+-   [Every](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Every)
+-   [Equal](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Equal)
+-   [EqualWith](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#EqualWith)
+-   [Filter](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Filter)
+-   [Find](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Find)
+-   [FindLast](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#FindLast)
+-   [FlattenDeep](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#FlattenDeep)
+-   [ForEach](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#ForEach)
+-   [GroupBy](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#GroupBy)
+-   [IntSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#IntSlice)
+-   [IndexOf](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#IndexOf)
+-   [LastIndexOf](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#LastIndexOf)
+-   [InterfaceSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#InterfaceSlice)
+-   [Intersection](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Intersection)
+-   [InsertByIndex](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#InsertByIndex)
+-   [Map](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Map)
+-   [ReverseSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#ReverseSlice)
+-   [Reduce](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Reduce)
+-   [Shuffle](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Shuffle)
+-   [SortByField](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#SortByField)
+-   [Some](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Some)
+-   [StringSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#StringSlice)
+-   [ToSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#ToSlice)
+-   [ToSlicePointer](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#ToSlice)
+-   [Unique](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Unique)
+-   [UniqueBy](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#UniqueBy)
+-   [Union](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Union)
+-   [UpdateByIndex](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#UpdateByIndex)
+-   [Without](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Without)

-### 12. strutil包含处理字符串的相关函数。
+### 12. strutil 包含处理字符串的相关函数。

 ```go
 import "github.com/duke-git/lancet/strutil"
@@ -326,84 +341,87 @@ import "github.com/duke-git/lancet/strutil"

 #### 函数列表:

- [After](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#After)
- [AfterLast](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#AfterLast)
- [Before](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Before)
- [BeforeLast](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#BeforeLast)
- [CamelCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#CamelCase)
- [Capitalize](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Capitalize)
- [IsString](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#IsString)
- [KebabCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#KebabCase)
- [LowerFirst](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#LowerFirst)
- [UpperFirst](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#UpperFirst)
- [PadEnd](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#PadEnd)
- [PadStart](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#PadStart)
- [Reverse](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Reverse)
- [SnakeCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#SnakeCase)
- [SplitEx](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#SplitEx)
- [Wrap](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Wrap)
- [Unwrap](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Unwrap)
-  
+-   [After](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#After)
+-   [AfterLast](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#AfterLast)
+-   [Before](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Before)
+-   [BeforeLast](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#BeforeLast)
+-   [CamelCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#CamelCase)
+-   [Capitalize](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Capitalize)
+-   [IsString](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#IsString)
+-   [KebabCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#KebabCase)
+-   [UpperKebabCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#UpperKebabCase)
+-   [LowerFirst](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#LowerFirst)
+-   [UpperFirst](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#UpperFirst)
+-   [PadEnd](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#PadEnd)
+-   [PadStart](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#PadStart)
+-   [Reverse](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Reverse)
+-   [SnakeCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#SnakeCase)
+-   [UpperSnakeCase](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#UpperSnakeCase)
+-   [SplitEx](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#SplitEx)
+-   [Wrap](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Wrap)
+-   [Unwrap](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Unwrap)

-### 13. system包含os, runtime, shell command相关函数。
+### 13. system 包含 os, runtime, shell command 相关函数。

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

 #### 函数列表:
- [IsWindows](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#IsWindows)
- [IsLinux](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#IsLinux)
- [IsMac](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#IsMac)
- [GetOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#GetOsEnv)
- [SetOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#SetOsEnv)
- [RemoveOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#RemoveOsEnv)
- [CompareOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#CompareOsEnv)
- [ExecCommand](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#ExecCommand)
- [GetOsBits](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#GetOsBits)

-### 14. 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/v1/docs/system_zh-CN.md#IsWindows)
+-   [IsLinux](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#IsLinux)
+-   [IsMac](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#IsMac)
+-   [GetOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#GetOsEnv)
+-   [SetOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#SetOsEnv)
+-   [RemoveOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#RemoveOsEnv)
+-   [CompareOsEnv](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#CompareOsEnv)
+-   [ExecCommand](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#ExecCommand)
+-   [GetOsBits](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#GetOsBits)
+
+### 14. 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/validator"
 ```
+
 #### 函数列表:

- [ContainChinese](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#ContainChinese)
- [ContainLetter](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#ContainLetter)
- [ContainLower](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#ContainLower)
- [ContainUpper](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#ContainUpper)
- [IsAlpha](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsAlpha)
- [IsAllUpper](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsAllUpper)
- [IsAllLower](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsAllLower)
- [IsBase64](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsBase64)
- [IsChineseMobile](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsChineseMobile)
- [IsChineseIdNum](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsChineseIdNum)
- [IsChinesePhone](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsChinesePhone)
- [IsCreditCard](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsCreditCard)
- [IsDns](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsDns)
- [IsEmail](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsEmail)
- [IsEmptyString](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsEmptyString)
- [IsFloatStr](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsFloatStr)
- [IsNumberStr](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsNumberStr)
- [IsJSON](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsJSON)
- [IsRegexMatch](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsRegexMatch)
- [IsIntStr](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsIntStr)
- [IsIp](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsIp)
- [IsIpV4](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsIpV4)
- [IsIpV6](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsIpV6)
- [IsStrongPassword](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsStrongPassword)
- [IsUrl](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsUrl)
- [IsWeakPassword](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsWeakPassword)
- [IsZeroValue](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsZeroValue)
-
+-   [ContainChinese](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#ContainChinese)
+-   [ContainLetter](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#ContainLetter)
+-   [ContainLower](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#ContainLower)
+-   [ContainUpper](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#ContainUpper)
+-   [IsAlpha](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsAlpha)
+-   [IsAllUpper](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsAllUpper)
+-   [IsAllLower](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsAllLower)
+-   [IsBase64](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsBase64)
+-   [IsChineseMobile](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsChineseMobile)
+-   [IsChineseIdNum](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsChineseIdNum)
+-   [IsChinesePhone](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsChinesePhone)
+-   [IsCreditCard](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsCreditCard)
+-   [IsDns](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsDns)
+-   [IsEmail](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsEmail)
+-   [IsEmptyString](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsEmptyString)
+-   [IsFloatStr](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsFloatStr)
+-   [IsNumberStr](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsNumberStr)
+-   [IsJSON](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsJSON)
+-   [IsRegexMatch](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsRegexMatch)
+-   [IsIntStr](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsIntStr)
+-   [IsIp](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsIp)
+-   [IsIpV4](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsIpV4)
+-   [IsIpV6](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsIpV6)
+-   [IsStrongPassword](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsStrongPassword)
+-   [IsUrl](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsUrl)
+-   [IsWeakPassword](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsWeakPassword)
+-   [IsZeroValue](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsZeroValue)
+-   [IsGBK](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsGBK)

 ## 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/docs/convertor.md
+++ b/docs/convertor.md
@@ -19,12 +19,14 @@ import (
 <div STYLE="page-break-after: always;"></div>

 ## Index
+
 - [ColorHexToRGB](#ColorHexToRGB)
 - [ColorRGBToHex](#ColorRGBToHex)
 - [ToBool](#ToBool)
 - [ToBytes](#ToBytes)
 - [ToChar](#ToChar)
 - [ToChannel](#ToChannel)
+- [ToFloat](#ToFloat)
 - [ToInt](#ToInt)
 - [ToJson](#ToJson)
 - [ToString](#ToString)
--- a/docs/convertor_zh-CN.md
+++ b/docs/convertor_zh-CN.md
@@ -21,25 +21,19 @@ import (

 ## 目录

- [Convertor](#convertor)
-  - [源码:](#源码)
-  - [用法:](#用法)
-  - [目录](#目录)
-  - [文档](#文档)
-    - [<span id="ColorHexToRGB">ColorHexToRGB</span>](#colorhextorgb)
-    - [<span id="ColorRGBToHex">ColorRGBToHex</span>](#colorrgbtohex)
-    - [<span id="ToBool">ToBool</span>](#tobool)
-    - [<span id="ToBytes">ToBytes</span>](#tobytes)
-    - [<span id="ToChar">ToChar</span>](#tochar)
-    - [<span id="ToChannel">ToChannel</span>](#tochannel)
-    - [<span id="ToFloat">ToFloat</span>](#tofloat)
-    - [<span id="ToInt">ToInt</span>](#toint)
-    - [<span id="ToJson">ToJson</span>](#tojson)
-    - [<span id="ToString">ToString</span>](#tostring)
-    - [<span id="StructToMap">StructToMap</span>](#structtomap)
-    - [<span id="EncodeByte">EncodeByte</span>](#encodebyte)
-    - [<span id="DecodeByte">DecodeByte</span>](#decodebyte)
-  
+- [ColorHexToRGB](#ColorHexToRGB)
+- [ColorRGBToHex](#ColorRGBToHex)
+- [ToBool](#ToBool)
+- [ToBytes](#ToBytes)
+- [ToChar](#ToChar)
+- [ToChannel](#ToChannel)
+- [ToFloat](#ToFloat)
+- [ToInt](#ToInt)
+- [ToJson](#ToJson)
+- [ToString](#ToString)
+- [StructToMap](#StructToMap)
+- [EncodeByte](#EncodeByte)
+- [DecodeByte](#DecodeByte)

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

--- a/docs/cryptor.md
+++ b/docs/cryptor.md
@@ -47,7 +47,6 @@ import (
 - [HmacSha1](#HmacSha1)
 - [HmacSha256](#HmacSha256)
 - [HmacSha512](#HmacSha512)
-
 - [Md5String](#Md5String)
 - [Md5File](#Md5File)
 - [Sha1](#Sha1)
--- a/docs/cryptor_zh-CN.md
+++ b/docs/cryptor_zh-CN.md
@@ -33,7 +33,6 @@ import (
 - [AesOfbDecrypt](#AesOfbDecrypt)
 - [Base64StdEncode](#Base64StdEncode)
 - [Base64StdDecode](#Base64StdDecode)
-
 - [DesEcbEncrypt](#DesEcbEncrypt)
 - [DesEcbDecrypt](#DesEcbDecrypt)
 - [DesCbcEncrypt](#DesCbcEncrypt)
@@ -43,7 +42,6 @@ import (
 - [DesCfbDecrypt](#DesCfbDecrypt)
 - [DesOfbEncrypt](#DesOfbEncrypt)
 - [DesOfbDecrypt](#DesOfbDecrypt)
-
 - [HmacMd5](#HmacMd5)
 - [HmacSha1](#HmacSha1)
 - [HmacSha256](#HmacSha256)
--- a/docs/datetime.md
+++ b/docs/datetime.md
@@ -28,7 +28,6 @@ import (
 - [BeginOfWeek](#BeginOfWeek)
 - [BeginOfMonth](#BeginOfMonth)
 - [BeginOfYear](#BeginOfYear)
-
 - [EndOfMinute](#EndOfMinute)
 - [EndOfHour](#EndOfHour)
 - [EndOfDay](#EndOfDay)
--- a/docs/datetime_zh-CN.md
+++ b/docs/datetime_zh-CN.md
@@ -28,7 +28,6 @@ import (
 - [BeginOfWeek](#BeginOfWeek)
 - [BeginOfMonth](#BeginOfMonth)
 - [BeginOfYear](#BeginOfYear)
-
 - [EndOfMinute](#EndOfMinute)
 - [EndOfHour](#EndOfHour)
 - [EndOfDay](#EndOfDay)
--- a/docs/fileutil.md
+++ b/docs/fileutil.md
@@ -21,7 +21,6 @@ import (
 ## Index
 - [ClearFile](#ClearFile)
 - [CreateFile](#CreateFile)
-  
 - [CreateDir](#CreateDir)
 - [CopyFile](#CopyFile)
 - [FileMode](#FileMode)
--- a/docs/fileutil_zh-CN.md
+++ b/docs/fileutil_zh-CN.md
@@ -28,7 +28,6 @@ import (
 - [IsExist](#IsExist)
 - [IsLink](#IsLink)
 - [IsDir](#IsDir)
-
 - [ListFileNames](#ListFileNames)
 - [RemoveFile](#RemoveFile)
 - [ReadFileToString](#ReadFileToString)
--- a/docs/netutil.md
+++ b/docs/netutil.md
@@ -37,7 +37,6 @@ import (
 - [SendRequest](#SendRequest)
 - [DecodeResponse](#DecodeResponse)
 - [StructToUrlValues](#StructToUrlValues)
-
 - [HttpGet<sup>Deprecated</sup>](#HttpGet)
 - [HttpDelete<sup>Deprecated</sup>](#HttpDelete)
 - [HttpPost<sup>Deprecated</sup>](#HttpPost)
--- a/docs/netutil_zh-CN.md
+++ b/docs/netutil_zh-CN.md
@@ -36,7 +36,6 @@ import (
 - [SendRequest](#SendRequest)
 - [DecodeResponse](#DecodeResponse)
 - [StructToUrlValues](#StructToUrlValues)
-
 - [HttpGet<sup>Deprecated</sup>](#HttpGet)
 - [HttpDelete<sup>Deprecated</sup>](#HttpDelete)
 - [HttpPost<sup>Deprecated</sup>](#HttpPost)
--- a/docs/random.md
+++ b/docs/random.md
@@ -1,4 +1,5 @@
 # Random
+
 Package random implements some basic functions to generate random int and string.

 <div STYLE="page-break-after: always;"></div>
@@ -7,10 +8,10 @@ Package random implements some basic functions to generate random int and string

 [https://github.com/duke-git/lancet/blob/v1/random/random.go](https://github.com/duke-git/lancet/blob/v1/random/random.go)

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

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

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

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

 ## Documentation

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

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

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

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

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

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

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

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

 <b>Signature:</b>

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

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

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

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

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

+<b>Signature:</b>
+
+```go
+func RandUpper(length int) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/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/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/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/random"
+)
+
+func main() {
+	randStr := random.RandNumeralOrLetter(6)
+	fmt.Println(randStr) //0aW7cQ
+}
+```

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

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

 ```go
@@ -134,5 +245,3 @@ func main() {
 	fmt.Println(uuid)
 }
 ```
-
-
--- a/docs/random_zh-CN.md
+++ b/docs/random_zh-CN.md
@@ -1,5 +1,6 @@
 # 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>

@@ -7,10 +8,10 @@ random随机数生成器包，可以生成随机[]bytes, int, string。

 [https://github.com/duke-git/lancet/blob/v1/random/random.go](https://github.com/duke-git/lancet/blob/v1/random/random.go)

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

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

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

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

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

 ## 文档

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

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

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

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

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

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

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

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

 <b>函数签名:</b>

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

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

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

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

+<p>生成给定长度的随机大写字母字符串</p>
+
+<b>函数签名:</b>
+
+```go
+func RandUpper(length int) string
+```
+
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/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/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/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/random"
+)
+
+func main() {
+	randStr := random.RandNumeralOrLetter(6)
+	fmt.Println(randStr) //0aW7cQ
+}
+```

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

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

 ```go
@@ -134,5 +245,3 @@ func main() {
 	fmt.Println(uuid)
 }
 ```
-
-
--- a/docs/slice.md
+++ b/docs/slice.md
@@ -39,7 +39,6 @@ import (
 - [FindLast](#FindLast)
 - [FlattenDeep](#FlattenDeep)
 - [ForEach](#ForEach)
-  
 - [GroupBy](#GroupBy)
 - [IntSlice](#IntSlice)
 - [InterfaceSlice](#InterfaceSlice)
--- a/docs/slice_zh-CN.md
+++ b/docs/slice_zh-CN.md
@@ -39,7 +39,6 @@ import (
 - [FindLast](#FindLast)
 - [FlattenDeep](#FlattenDeep)
 - [ForEach](#ForEach)
-  
 - [GroupBy](#GroupBy)
 - [IntSlice](#IntSlice)
 - [InterfaceSlice](#InterfaceSlice)
--- a/docs/strutil.md
+++ b/docs/strutil.md
@@ -28,14 +28,15 @@ import (
 - [Capitalize](#Capitalize)
 - [IsString](#IsString)
 - [KebabCase](#KebabCase)
+- [UpperKebabCase](#UpperKebabCase)
 - [LowerFirst](#LowerFirst)
 - [UpperFirst](#UpperFirst)
 - [PadEnd](#PadEnd)
 - [PadStart](#PadStart)
- [ReverseStr](#ReverseStr)
+- [Reverse](#Reverse)
 - [SnakeCase](#SnakeCase)
+- [UpperSnakeCase](#UpperSnakeCase)
 - [Wrap](#Wrap)
-
 - [Unwrap](#Unwrap)
 - [SplitEx](#SplitEx)
  
@@ -169,7 +170,7 @@ func main() {


 ### <span id="CamelCase">CamelCase</span>
-<p>Covert string to camelCase string.</p>
+<p>Coverts string to camelCase string, non letters and numbers will be ignored.</p>

 <b>Signature:</b>

@@ -196,7 +197,9 @@ func main() {

 	s4 := strutil.CamelCase("foo bar")
 	fmt.Println(s4) //fooBar
-}
+
+	s4 := strutil.CamelCase("Foo-#1😄$_%^&*(1bar")
+	fmt.Println(s4) //foo11Bar
 ```


@@ -261,7 +264,7 @@ func main() {


 ### <span id="KebabCase">KebabCase</span>
-<p>Covert string to kebab-case.</p>
+<p>KebabCase covert string to kebab-case, non letters and numbers will be ignored.</p>

 <b>Signature:</b>

@@ -287,12 +290,44 @@ func main() {
 	fmt.Println(s3) //foo-bar

 	s4 := strutil.KebabCase("__FOO_BAR__")
-	fmt.Println(s4) //f-o-o-b-a-r
+	fmt.Println(s4) //foo-bar
 }
 ```



+### <span id="UpperKebabCase">UpperKebabCase</span>
+<p>UpperKebabCase covert string to upper KEBAB-CASE, non letters and numbers will be ignored.</p>
+
+<b>Signature:</b>
+
+```go
+func KebabCase(s string) string
+```
+<b>Example:</b>
+
+```go
+import (
+	"fmt"
+	"github.com/duke-git/lancet/strutil"
+)
+
+func main() {
+	s1 := strutil.UpperKebabCase("Foo Bar-")
+	fmt.Println(s1) //FOO-BAR
+
+	s2 := strutil.UpperKebabCase("foo_Bar")
+	fmt.Println(s2) //FOO-BAR
+
+	s3 := strutil.UpperKebabCase("fooBar")
+	fmt.Println(s3) //FOO-BAR
+
+	s4 := strutil.UpperKebabCase("__FOO_BAR__")
+	fmt.Println(s4) //FOO-BAR
+}
+```
+
+

 ### <span id="LowerFirst">LowerFirst</span>
 <p>Convert the first character of string to lower case.</p>
@@ -456,9 +491,8 @@ func main() {
 ```


-
 ### <span id="SnakeCase">SnakeCase</span>
-<p>Covert string to snake_case.</p>
+<p>Coverts string to snake_case, non letters and numbers will be ignored.</p>

 <b>Signature:</b>

@@ -484,14 +518,48 @@ func main() {
 	fmt.Println(s3) //foo_bar

 	s4 := strutil.SnakeCase("__FOO_BAR__")
-	fmt.Println(s4) //f_o_o_b_a_r
+	fmt.Println(s4) //foo_bar

-	s5 := strutil.SnakeCase("aBbc-s$@a&%_B.B^C")
-	fmt.Println(s5) //a_bbc_s_a_b_b_c
+	s5 := strutil.SnakeCase("Foo-#1😄$_%^&*(1bar")
+	fmt.Println(s5) //foo_1_1_bar
 }
 ```


+### <span id="UpperSnakeCase">UpperSnakeCase</span>
+<p>Coverts string to upper KEBAB-CASE, non letters and numbers will be ignored.</p>
+
+<b>Signature:</b>
+
+```go
+func SnakeCase(s string) string
+```
+<b>Example:</b>
+
+```go
+import (
+	"fmt"
+	"github.com/duke-git/lancet/strutil"
+)
+
+func main() {
+	s1 := strutil.UpperSnakeCase("Foo Bar-")
+	fmt.Println(s1) //FOO_BAR
+
+	s2 := strutil.UpperSnakeCase("foo_Bar")
+	fmt.Println(s2) //FOO_BAR
+
+	s3 := strutil.UpperSnakeCase("fooBar")
+	fmt.Println(s3) //FOO_BAR
+
+	s4 := strutil.UpperSnakeCase("__FOO_BAR__")
+	fmt.Println(s4) //FOO_BAR
+
+	s5 := strutil.UpperSnakeCase("Foo-#1😄$_%^&*(1bar")
+	fmt.Println(s5) //FOO_1_1_BAR
+}
+```
+


 ### <span id="Wrap">Wrap</span>
--- a/docs/strutil_zh-CN.md
+++ b/docs/strutil_zh-CN.md
@@ -28,14 +28,15 @@ import (
 - [Capitalize](#Capitalize)
 - [IsString](#IsString)
 - [KebabCase](#KebabCase)
+- [UpperKebabCase](#UpperKebabCase)
 - [LowerFirst](#LowerFirst)
 - [UpperFirst](#UpperFirst)
 - [PadEnd](#PadEnd)
 - [PadStart](#PadStart)
- [ReverseStr](#ReverseStr)
+- [Reverse](#Reverse)
 - [SnakeCase](#SnakeCase)
+- [UpperSnakeCase](#UpperSnakeCase)
 - [Wrap](#Wrap)
-  
 - [Unwrap](#Unwrap)
 - [SplitEx](#SplitEx)
  
@@ -170,7 +171,7 @@ func main() {


 ### <span id="CamelCase">CamelCase</span>
-<p>将字符串转换为驼峰式字符串</p>
+<p>将字符串转换为驼峰式字符串, 非字母和数字会被忽略</p>

 <b>函数签名:</b>

@@ -197,6 +198,9 @@ func main() {

 	s4 := strutil.CamelCase("foo bar")
 	fmt.Println(s4) //fooBar
+
+	s4 := strutil.CamelCase("Foo-#1😄$_%^&*(1bar")
+	fmt.Println(s4) //foo11Bar
 }
 ```

@@ -260,9 +264,8 @@ func main() {
 ```


-
 ### <span id="KebabCase">KebabCase</span>
-<p>将字符串转换为kebab-case</p>
+<p>将字符串转换为kebab-case, 非字母和数字会被忽略</p>

 <b>函数签名:</b>

@@ -288,12 +291,43 @@ func main() {
 	fmt.Println(s3) //foo-bar

 	s4 := strutil.KebabCase("__FOO_BAR__")
-	fmt.Println(s4) //f-o-o-b-a-r
+	fmt.Println(s4) //foo-bar
 }
 ```



+### <span id="UpperKebabCase">UpperKebabCase</span>
+<p>将字符串转换为大写KEBAB-CASE, 非字母和数字会被忽略</p>
+
+<b>函数签名:</b>
+
+```go
+func KebabCase(s string) string
+```
+<b>例子:</b>
+
+```go
+import (
+	"fmt"
+	"github.com/duke-git/lancet/strutil"
+)
+
+func main() {
+	s1 := strutil.UpperKebabCase("Foo Bar-")
+	fmt.Println(s1) //FOO-BAR
+
+	s2 := strutil.UpperKebabCase("foo_Bar")
+	fmt.Println(s2) //FOO-BAR
+
+	s3 := strutil.UpperKebabCase("fooBar")
+	fmt.Println(s3) //FOO-BAR
+
+	s4 := strutil.UpperKebabCase("__FOO_BAR__")
+	fmt.Println(s4) //FOO-BAR
+}
+```
+

 ### <span id="LowerFirst">LowerFirst</span>
 <p>将字符串的第一个字符转换为小写</p>
@@ -457,9 +491,8 @@ func main() {
 ```


-
 ### <span id="SnakeCase">SnakeCase</span>
-<p>将字符串转换为snake_case形式</p>
+<p>将字符串转换为snake_case形式, 非字母和数字会被忽略</p>

 <b>函数签名:</b>

@@ -485,14 +518,48 @@ func main() {
 	fmt.Println(s3) //foo_bar

 	s4 := strutil.SnakeCase("__FOO_BAR__")
-	fmt.Println(s4) //f_o_o_b_a_r
+	fmt.Println(s4) //foo_bar

-	s5 := strutil.SnakeCase("aBbc-s$@a&%_B.B^C")
-	fmt.Println(s5) //a_bbc_s_a_b_b_c
+	s5 := strutil.SnakeCase("Foo-#1😄$_%^&*(1bar")
+	fmt.Println(s5) //foo_1_1_bar
 }
 ```


+### <span id="UpperSnakeCase">UpperSnakeCase</span>
+<p>将字符串转换为大写SNAKE_CASE形式, 非字母和数字会被忽略</p>
+
+<b>函数签名:</b>
+
+```go
+func SnakeCase(s string) string
+```
+<b>例子:</b>
+
+```go
+import (
+	"fmt"
+	"github.com/duke-git/lancet/strutil"
+)
+
+func main() {
+	s1 := strutil.UpperSnakeCase("Foo Bar-")
+	fmt.Println(s1) //FOO_BAR
+
+	s2 := strutil.UpperSnakeCase("foo_Bar")
+	fmt.Println(s2) //FOO_BAR
+
+	s3 := strutil.UpperSnakeCase("fooBar")
+	fmt.Println(s3) //FOO_BAR
+
+	s4 := strutil.UpperSnakeCase("__FOO_BAR__")
+	fmt.Println(s4) //FOO_BAR
+
+	s5 := strutil.UpperSnakeCase("Foo-#1😄$_%^&*(1bar")
+	fmt.Println(s5) //FOO_1_1_BAR
+}
+```
+


 ### <span id="Wrap">Wrap</span>
--- a/docs/validator.md
+++ b/docs/validator.md
@@ -34,7 +34,6 @@ import (
 - [IsCreditCard](#IsCreditCard)
 - [IsDns](#IsDns)
 - [IsEmail](#IsEmail)
-  
 - [IsEmptyString](#IsEmptyString)
 - [IsFloatStr](#IsFloatStr)
 - [IsNumberStr](#IsNumberStr)
@@ -48,7 +47,7 @@ import (
 - [IsUrl](#IsUrl)
 - [IsWeakPassword](#IsWeakPassword)
 - [IsZeroValue](#IsZeroValue)
-  
+- [IsGBK](#IsGBK)

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

@@ -820,7 +819,34 @@ func main() {



-
+### <span id="IsGBK">IsGBK</span>
+<p>Checks if data encoding is gbk(Chinese character internal code extension specification). this function is implemented by whether double bytes fall within the encoding range of gbk,while each byte of utf-8 encoding format falls within the encoding range of gbk.Therefore, utf8.valid() should be called first to check whether it is not utf-8 encoding and then call IsGBK() to check gbk encoding. like the example.</p>
+
+<b>Signature:</b>
+
+```go
+func IsGBK(data []byte) bool
+```
+<b>Example:</b>
+
+```go
+import (
+	"fmt"
+	"github.com/duke-git/lancet/validator"
+)
+
+func main() {
+	data := []byte("你好")
+	
+	// check utf8 first
+	if utf8.Valid(data) {
+		fmt.Println("data encoding is utf-8")
+	}else if(validator.IsGBK(data)) {
+		fmt.Println("data encoding is GBK")
+	}
+	fmt.Println("data encoding is unknown")
+}
+```



--- a/docs/validator_zh-CN.md
+++ b/docs/validator_zh-CN.md
@@ -34,7 +34,6 @@ import (
 - [IsCreditCard](#IsCreditCard)
 - [IsDns](#IsDns)
 - [IsEmail](#IsEmail)
-  
 - [IsEmptyString](#IsEmptyString)
 - [IsFloatStr](#IsFloatStr)
 - [IsNumberStr](#IsNumberStr)
@@ -48,7 +47,7 @@ import (
 - [IsUrl](#IsUrl)
 - [IsWeakPassword](#IsWeakPassword)
 - [IsZeroValue](#IsZeroValue)
-  
+- [IsGBK](#IsGBK)

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

@@ -822,6 +821,33 @@ func main() {



-
+### <span id="IsGBK">IsGBK</span>
+<p>检查数据编码是否为gbk（汉字内部代码扩展规范）。该函数的实现取决于双字节是否在gbk的编码范围内，而utf-8编码格式的每个字节都在gbk编码范围内。因此，应该首先调用utf8.valid检查它是否是utf-8编码，然后调用IsGBK检查gbk编码。如示例所示。</p>
+
+<b>函数签名:</b>
+
+```go
+func IsGBK(data []byte) bool
+```
+<b>例子:</b>
+
+```go
+import (
+	"fmt"
+	"github.com/duke-git/lancet/validator"
+)
+
+func main() {
+	data := []byte("你好")
+	
+	// 先检查utf8编码
+	if utf8.Valid(data) {
+		fmt.Println("data encoding is utf-8")
+	}else if(validator.IsGBK(data)) {
+		fmt.Println("data encoding is GBK")
+	}
+	fmt.Println("data encoding is unknown")
+}
+```


--- a/fileutil/file.go
+++ b/fileutil/file.go
@@ -8,6 +8,7 @@ import (
 	"archive/zip"
 	"bufio"
 	"errors"
+	"fmt"
 	"io"
 	"io/fs"
 	"io/ioutil"
@@ -220,7 +221,11 @@ func UnZip(zipFile string, destPath string) error {
 	defer zipReader.Close()

 	for _, f := range zipReader.File {
-		path := filepath.Join(destPath, f.Name)
+		//issue#62: fix ZipSlip bug
+		path, err := safeFilepathJoin(destPath, f.Name)
+		if err != nil {
+			return err
+		}
 		if f.FileInfo().IsDir() {
 			os.MkdirAll(path, os.ModePerm)
 		} else {
@@ -249,6 +254,17 @@ 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/go.mod
+++ b/go.mod
@@ -1,3 +1,5 @@
 module github.com/duke-git/lancet

 go 1.16
+
+require golang.org/x/text v0.5.0
--- a/go.sum
+++ b/go.sum
@@ -0,0 +1,25 @@
+github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
+golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
+golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
+golang.org/x/text v0.5.0 h1:OLmvp0KP+FVG99Ct/qFiL/Fhk4zp4QQnZ7b2U+5piUM=
+golang.org/x/text v0.5.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
--- 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/strutil/string.go
+++ b/strutil/string.go
@@ -5,53 +5,41 @@
 package strutil

 import (
-	"regexp"
 	"strings"
 	"unicode"
 	"unicode/utf8"
 )

 // CamelCase covert string to camelCase string.
+// non letters and numbers will be ignored
+// eg. "Foo-#1😄$_%^&*(1bar" => "foo11Bar"
 func CamelCase(s string) string {
-	if len(s) == 0 {
-		return ""
-	}
+	var builder strings.Builder

-	res := ""
-	blankSpace := " "
-	regex, _ := regexp.Compile("[-_&]+")
-	ss := regex.ReplaceAllString(s, blankSpace)
-	for i, v := range strings.Split(ss, blankSpace) {
-		vv := []rune(v)
+	strs := splitIntoStrings(s, false)
+	for i, str := range strs {
 		if i == 0 {
-			if vv[i] >= 65 && vv[i] <= 96 {
-				vv[0] += 32
-			}
-			res += string(vv)
+			builder.WriteString(strings.ToLower(str))
 		} else {
-			res += Capitalize(v)
+			builder.WriteString(Capitalize(str))
 		}
 	}

-	return res
+	return builder.String()
 }

 // Capitalize converts the first character of a string to upper case and the remaining to lower case.
 func Capitalize(s string) string {
-	if len(s) == 0 {
-		return ""
-	}
-
-	out := make([]rune, len(s))
+	result := make([]rune, len(s))
 	for i, v := range s {
 		if i == 0 {
-			out[i] = unicode.ToUpper(v)
+			result[i] = unicode.ToUpper(v)
 		} else {
-			out[i] = unicode.ToLower(v)
+			result[i] = unicode.ToLower(v)
 		}
 	}

-	return string(out)
+	return string(result)
 }

 // UpperFirst converts the first character of string to upper case.
@@ -117,47 +105,35 @@ func PadStart(source string, size int, padStr string) string {
 }

 // KebabCase covert string to kebab-case
+// non letters and numbers will be ignored
+// eg. "Foo-#1😄$_%^&*(1bar" => "foo-1-1-bar"
 func KebabCase(s string) string {
-	if len(s) == 0 {
-		return ""
-	}
+	result := splitIntoStrings(s, false)
+	return strings.Join(result, "-")
+}

-	regex := regexp.MustCompile(`[\W|_]+`)
-	blankSpace := " "
-	match := regex.ReplaceAllString(s, blankSpace)
-	rs := strings.Split(match, blankSpace)
-
-	var res []string
-	for _, v := range rs {
-		splitWords := splitWordsToLower(v)
-		if len(splitWords) > 0 {
-			res = append(res, splitWords...)
-		}
-	}
-
-	return strings.Join(res, "-")
+// UpperKebabCase covert string to upper KEBAB-CASE
+// non letters and numbers will be ignored
+// eg. "Foo-#1😄$_%^&*(1bar" => "FOO-1-1-BAR"
+func UpperKebabCase(s string) string {
+	result := splitIntoStrings(s, true)
+	return strings.Join(result, "-")
 }

 // SnakeCase covert string to snake_case
+// non letters and numbers will be ignored
+// eg. "Foo-#1😄$_%^&*(1bar" => "foo_1_1_bar"
 func SnakeCase(s string) string {
-	if len(s) == 0 {
-		return ""
-	}
+	result := splitIntoStrings(s, false)
+	return strings.Join(result, "_")
+}

-	regex := regexp.MustCompile(`[\W|_]+`)
-	blankSpace := " "
-	match := regex.ReplaceAllString(s, blankSpace)
-	rs := strings.Split(match, blankSpace)
-
-	var res []string
-	for _, v := range rs {
-		splitWords := splitWordsToLower(v)
-		if len(splitWords) > 0 {
-			res = append(res, splitWords...)
-		}
-	}
-
-	return strings.Join(res, "_")
+// UpperSnakeCase covert string to upper SNAKE_CASE
+// non letters and numbers will be ignored
+// eg. "Foo-#1😄$_%^&*(1bar" => "FOO_1_1_BAR"
+func UpperSnakeCase(s string) string {
+	result := splitIntoStrings(s, true)
+	return strings.Join(result, "_")
 }

 // Before create substring in source string before position when char first appear
--- a/strutil/string_internal.go
+++ b/strutil/string_internal.go
@@ -1,40 +1,98 @@
 package strutil

-import "strings"
+import "unicode"

-// splitWordsToLower split a string into worlds by uppercase char
-func splitWordsToLower(s string) []string {
-	var res []string
+func splitIntoStrings(s string, upperCase bool) []string {
+	var runes [][]rune
+	lastCharType := 0
+	charType := 0

-	upperIndexes := upperIndex(s)
-	l := len(upperIndexes)
-	if upperIndexes == nil || l == 0 {
-		if s != "" {
-			res = append(res, s)
+	// split into fields based on type of unicode character
+	for _, r := range s {
+		switch true {
+		case isLower(r):
+			charType = 1
+		case isUpper(r):
+			charType = 2
+		case isDigit(r):
+			charType = 3
+		default:
+			charType = 4
 		}
-		return res
-	}
-	for i := 0; i < l; i++ {
-		if i < l-1 {
-			res = append(res, strings.ToLower(s[upperIndexes[i]:upperIndexes[i+1]]))
+
+		if charType == lastCharType {
+			runes[len(runes)-1] = append(runes[len(runes)-1], r)
 		} else {
-			res = append(res, strings.ToLower(s[upperIndexes[i]:]))
+			runes = append(runes, []rune{r})
 		}
-	}
-	return res
-}
-
-// upperIndex get a int slice which elements are all the uppercase char index of a string
-func upperIndex(s string) []int {
-	var res []int
-	for i := 0; i < len(s); i++ {
-		if 64 < s[i] && s[i] < 91 {
-			res = append(res, i)
-		}
-	}
-	if len(s) > 0 && res != nil && res[0] != 0 {
-		res = append([]int{0}, res...)
+		lastCharType = charType
 	}

-	return res
+	for i := 0; i < len(runes)-1; i++ {
+		if isUpper(runes[i][0]) && isLower(runes[i+1][0]) {
+			runes[i+1] = append([]rune{runes[i][len(runes[i])-1]}, runes[i+1]...)
+			runes[i] = runes[i][:len(runes[i])-1]
+		}
+	}
+
+	// filter all none letters and none digit
+	var result []string
+	for _, rs := range runes {
+		if len(rs) > 0 && (unicode.IsLetter(rs[0]) || isDigit(rs[0])) {
+			if upperCase {
+				result = append(result, string(toUpperAll(rs)))
+			} else {
+				result = append(result, string(toLowerAll(rs)))
+			}
+		}
+	}
+
+	return result
+}
+
+// isDigit checks if a character is digit ('0' to '9')
+func isDigit(r rune) bool {
+	return r >= '0' && r <= '9'
+}
+
+// isLower checks if a character is lower case ('a' to 'z')
+func isLower(r rune) bool {
+	return r >= 'a' && r <= 'z'
+}
+
+// isUpper checks if a character is upper case ('A' to 'Z')
+func isUpper(r rune) bool {
+	return r >= 'A' && r <= 'Z'
+}
+
+// toLower converts a character  'A' to 'Z' to its lower case
+func toLower(r rune) rune {
+	if r >= 'A' && r <= 'Z' {
+		return r + 32
+	}
+	return r
+}
+
+// toLowerAll converts a character  'A' to 'Z' to its lower case
+func toLowerAll(rs []rune) []rune {
+	for i := range rs {
+		rs[i] = toLower(rs[i])
+	}
+	return rs
+}
+
+// toUpper converts a character  'a' to 'z' to its upper case
+func toUpper(r rune) rune {
+	if r >= 'a' && r <= 'z' {
+		return r - 32
+	}
+	return r
+}
+
+// toUpperAll converts a character  'a' to 'z' to its upper case
+func toUpperAll(rs []rune) []rune {
+	for i := range rs {
+		rs[i] = toUpper(rs[i])
+	}
+	return rs
 }
--- a/strutil/string_test.go
+++ b/strutil/string_test.go
@@ -9,67 +9,163 @@ import (
 func TestCamelCase(t *testing.T) {
 	assert := internal.NewAssert(t, "TestCamelCase")

-	assert.Equal("fooBar", CamelCase("foo_bar"))
-	assert.Equal("fooBar", CamelCase("Foo-Bar"))
-	assert.Equal("fooBar", CamelCase("Foo&bar"))
-	assert.Equal("fooBar", CamelCase("foo bar"))
+	cases := map[string]string{
+		"":                         "",
+		"foobar":                   "foobar",
+		"&FOO:BAR$BAZ":             "fooBarBaz",
+		"fooBar":                   "fooBar",
+		"FOObar":                   "foObar",
+		"$foo%":                    "foo",
+		"   $#$Foo   22    bar   ": "foo22Bar",
+		"Foo-#1😄$_%^&*(1bar":       "foo11Bar",
+	}

-	assert.NotEqual("FooBar", CamelCase("foo_bar"))
+	for k, v := range cases {
+		assert.Equal(v, CamelCase(k))
+	}
 }

 func TestCapitalize(t *testing.T) {
 	assert := internal.NewAssert(t, "TestCapitalize")

-	assert.Equal("Foo", Capitalize("foo"))
-	assert.Equal("Foo", Capitalize("Foo"))
-	assert.Equal("Foo", Capitalize("Foo"))
+	cases := map[string]string{
+		"":        "",
+		"Foo":     "Foo",
+		"_foo":    "_foo",
+		"foobar":  "Foobar",
+		"fooBar":  "Foobar",
+		"foo Bar": "Foo bar",
+		"foo-bar": "Foo-bar",
+		"$foo%":   "$foo%",
+	}

-	assert.NotEqual("foo", Capitalize("Foo"))
+	for k, v := range cases {
+		assert.Equal(v, Capitalize(k))
+	}
 }

 func TestKebabCase(t *testing.T) {
 	assert := internal.NewAssert(t, "TestKebabCase")

-	assert.Equal("foo-bar", KebabCase("Foo Bar-"))
-	assert.Equal("foo-bar", KebabCase("foo_Bar"))
-	assert.Equal("foo-bar", KebabCase("fooBar"))
-	assert.Equal("f-o-o-b-a-r", KebabCase("__FOO_BAR__"))
+	cases := map[string]string{
+		"":                         "",
+		"foo-bar":                  "foo-bar",
+		"--Foo---Bar-":             "foo-bar",
+		"Foo Bar-":                 "foo-bar",
+		"foo_Bar":                  "foo-bar",
+		"fooBar":                   "foo-bar",
+		"FOOBAR":                   "foobar",
+		"FOO_BAR":                  "foo-bar",
+		"__FOO_BAR__":              "foo-bar",
+		"$foo@Bar":                 "foo-bar",
+		"   $#$Foo   22    bar   ": "foo-22-bar",
+		"Foo-#1😄$_%^&*(1bar":       "foo-1-1-bar",
+	}

-	assert.NotEqual("foo_bar", KebabCase("fooBar"))
+	for k, v := range cases {
+		assert.Equal(v, KebabCase(k))
+	}
+}
+
+func TestUpperKebabCase(t *testing.T) {
+	assert := internal.NewAssert(t, "TestUpperKebabCase")
+
+	cases := map[string]string{
+		"":                         "",
+		"foo-bar":                  "FOO-BAR",
+		"--Foo---Bar-":             "FOO-BAR",
+		"Foo Bar-":                 "FOO-BAR",
+		"foo_Bar":                  "FOO-BAR",
+		"fooBar":                   "FOO-BAR",
+		"FOOBAR":                   "FOOBAR",
+		"FOO_BAR":                  "FOO-BAR",
+		"__FOO_BAR__":              "FOO-BAR",
+		"$foo@Bar":                 "FOO-BAR",
+		"   $#$Foo   22    bar   ": "FOO-22-BAR",
+		"Foo-#1😄$_%^&*(1bar":       "FOO-1-1-BAR",
+	}
+
+	for k, v := range cases {
+		assert.Equal(v, UpperKebabCase(k))
+	}
 }

 func TestSnakeCase(t *testing.T) {
 	assert := internal.NewAssert(t, "TestSnakeCase")

-	assert.Equal("foo_bar", SnakeCase("Foo Bar-"))
-	assert.Equal("foo_bar", SnakeCase("foo_Bar"))
-	assert.Equal("foo_bar", SnakeCase("fooBar"))
-	assert.Equal("f_o_o_b_a_r", SnakeCase("__FOO_BAR__"))
-	assert.Equal("a_bbc_s_a_b_b_c", SnakeCase("aBbc-s$@a&%_B.B^C"))
+	cases := map[string]string{
+		"":                         "",
+		"foo-bar":                  "foo_bar",
+		"--Foo---Bar-":             "foo_bar",
+		"Foo Bar-":                 "foo_bar",
+		"foo_Bar":                  "foo_bar",
+		"fooBar":                   "foo_bar",
+		"FOOBAR":                   "foobar",
+		"FOO_BAR":                  "foo_bar",
+		"__FOO_BAR__":              "foo_bar",
+		"$foo@Bar":                 "foo_bar",
+		"   $#$Foo   22    bar   ": "foo_22_bar",
+		"Foo-#1😄$_%^&*(1bar":       "foo_1_1_bar",
+	}

-	assert.NotEqual("foo-bar", SnakeCase("foo_Bar"))
+	for k, v := range cases {
+		assert.Equal(v, SnakeCase(k))
+	}
+}
+
+func TestUpperSnakeCase(t *testing.T) {
+	assert := internal.NewAssert(t, "TestUpperSnakeCase")
+
+	cases := map[string]string{
+		"":                         "",
+		"foo-bar":                  "FOO_BAR",
+		"--Foo---Bar-":             "FOO_BAR",
+		"Foo Bar-":                 "FOO_BAR",
+		"foo_Bar":                  "FOO_BAR",
+		"fooBar":                   "FOO_BAR",
+		"FOOBAR":                   "FOOBAR",
+		"FOO_BAR":                  "FOO_BAR",
+		"__FOO_BAR__":              "FOO_BAR",
+		"$foo@Bar":                 "FOO_BAR",
+		"   $#$Foo   22    bar   ": "FOO_22_BAR",
+		"Foo-#1😄$_%^&*(1bar":       "FOO_1_1_BAR",
+	}
+
+	for k, v := range cases {
+		assert.Equal(v, UpperSnakeCase(k))
+	}
 }

 func TestUpperFirst(t *testing.T) {
 	assert := internal.NewAssert(t, "TestLowerFirst")

-	assert.Equal("Foo", UpperFirst("foo"))
-	assert.Equal("BAR", UpperFirst("bAR"))
-	assert.Equal("FOo", UpperFirst("FOo"))
-	assert.Equal("FOo大", UpperFirst("fOo大"))
+	cases := map[string]string{
+		"":     "",
+		"foo":  "Foo",
+		"bAR":  "BAR",
+		"FOo":  "FOo",
+		"fOo大": "FOo大",
+	}

-	assert.NotEqual("Bar", UpperFirst("BAR"))
+	for k, v := range cases {
+		assert.Equal(v, UpperFirst(k))
+	}
 }

 func TestLowerFirst(t *testing.T) {
 	assert := internal.NewAssert(t, "TestLowerFirst")

-	assert.Equal("foo", LowerFirst("foo"))
-	assert.Equal("bAR", LowerFirst("BAR"))
-	assert.Equal("fOo", LowerFirst("FOo"))
-	assert.Equal("fOo大", LowerFirst("FOo大"))
+	cases := map[string]string{
+		"":     "",
+		"foo":  "foo",
+		"bAR":  "bAR",
+		"FOo":  "fOo",
+		"fOo大": "fOo大",
+	}

-	assert.NotEqual("Bar", LowerFirst("BAR"))
+	for k, v := range cases {
+		assert.Equal(v, LowerFirst(k))
+	}
 }

 func TestPadEnd(t *testing.T) {
--- a/system/os.go
+++ b/system/os.go
@@ -9,6 +9,10 @@ import (
 	"os"
 	"os/exec"
 	"runtime"
+	"unicode/utf8"
+
+	"github.com/duke-git/lancet/validator"
+	"golang.org/x/text/encoding/simplifiedchinese"
 )

 // IsWindows check if current os is windows
@@ -50,27 +54,61 @@ func CompareOsEnv(key, comparedEnv string) bool {
 	return env == comparedEnv
 }

-// ExecCommand use shell /bin/bash -c to execute command
+// ExecCommand execute command, return the stdout and stderr string of command, and error if error occur
+// param `command` is a complete command string, like, ls -a (linux), dir(windows), ping 127.0.0.1
+// in linux,  use /bin/bash -c to execute command
+// in windows, use powershell.exe to execute command
 func ExecCommand(command string) (stdout, stderr string, err error) {
 	var out bytes.Buffer
-	var errout bytes.Buffer
+	var errOut bytes.Buffer

 	cmd := exec.Command("/bin/bash", "-c", command)
 	if IsWindows() {
-		cmd = exec.Command("cmd")
+		cmd = exec.Command("powershell.exe", command)
 	}
 	cmd.Stdout = &out
-	cmd.Stderr = &errout
+	cmd.Stderr = &errOut
+
 	err = cmd.Run()

 	if err != nil {
-		stderr = string(errout.Bytes())
+		if utf8.Valid(errOut.Bytes()) {
+			stderr = byteToString(errOut.Bytes(), "UTF8")
+		} else if validator.IsGBK(errOut.Bytes()) {
+			stderr = byteToString(errOut.Bytes(), "GBK")
+		}
+		return
+	}
+
+	data := out.Bytes()
+	if utf8.Valid(data) {
+		stdout = byteToString(data, "UTF8")
+	} else if validator.IsGBK(data) {
+		stdout = byteToString(data, "GBK")
 	}
-	stdout = string(out.Bytes())

 	return
 }

+func byteToString(data []byte, charset string) string {
+	var result string
+
+	switch charset {
+	case "GBK":
+		decodeBytes, _ := simplifiedchinese.GBK.NewDecoder().Bytes(data)
+		result = string(decodeBytes)
+	case "GB18030":
+		decodeBytes, _ := simplifiedchinese.GB18030.NewDecoder().Bytes(data)
+		result = string(decodeBytes)
+	case "UTF8":
+		fallthrough
+	default:
+		result = string(data)
+	}
+
+	return result
+}
+
 // GetOsBits get this system bits 32bit or 64bit
 // return bit int (32/64)
 func GetOsBits() int {
--- a/system/os_test.go
+++ b/system/os_test.go
@@ -11,10 +11,10 @@ func TestOsDetection(t *testing.T) {
 	assert := internal.NewAssert(t, "TestOsJudgment")

 	osType, _, _ := ExecCommand("echo $OSTYPE")
-	if strings.Index(osType, "linux") != -1 {
+	if strings.Contains(osType, "linux") {
 		assert.Equal(true, IsLinux())
 	}
-	if strings.Index(osType, "darwin") != -1 {
+	if strings.Contains(osType, "darwin") {
 		assert.Equal(true, IsMac())
 	}
 }
@@ -44,21 +44,26 @@ func TestOsEnvOperation(t *testing.T) {
 func TestExecCommand(t *testing.T) {
 	assert := internal.NewAssert(t, "TestExecCommand")

-	out, errout, err := ExecCommand("ls")
-	t.Log("std out: ", out)
-	t.Log("std err: ", errout)
+	// linux or mac
+	stdout, stderr, err := ExecCommand("ls")
+	t.Log("std out: ", stdout)
+	t.Log("std err: ", stderr)
+	assert.Equal("", stderr)
 	assert.IsNil(err)

-	out, errout, err = ExecCommand("abc")
-	t.Log("std out: ", out)
-	t.Log("std err: ", errout)
-	if err != nil {
-		t.Logf("error: %v\n", err)
+	// windows
+	stdout, stderr, err = ExecCommand("dir")
+	t.Log("std out: ", stdout)
+	t.Log("std err: ", stderr)
+	if IsWindows() {
+		assert.IsNil(err)
 	}

-	if !IsWindows() {
-		assert.IsNotNil(err)
-	}
+	// error command
+	stdout, stderr, err = ExecCommand("abc")
+	t.Log("std out: ", stdout)
+	t.Log("std err: ", stderr)
+	assert.IsNotNil(err)
 }

 func TestGetOsBits(t *testing.T) {
--- a/validator/validator.go
+++ b/validator/validator.go
@@ -15,11 +15,24 @@ import (
 	"unicode"
 )

-var isAlphaRegexMatcher *regexp.Regexp = regexp.MustCompile(`^[a-zA-Z]+$`)
+var (
+	alphaMatcher         *regexp.Regexp = regexp.MustCompile(`^[a-zA-Z]+$`)
+	letterRegexMatcher   *regexp.Regexp = regexp.MustCompile(`[a-zA-Z]`)
+	intStrMatcher        *regexp.Regexp = regexp.MustCompile(`^[\+-]?\d+$`)
+	urlMatcher           *regexp.Regexp = regexp.MustCompile(`^((ftp|http|https?):\/\/)?(\S+(:\S*)?@)?((([1-9]\d?|1\d\d|2[01]\d|22[0-3])(\.(1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.([0-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(([a-zA-Z0-9]+([-\.][a-zA-Z0-9]+)*)|((www\.)?))?(([a-z\x{00a1}-\x{ffff}0-9]+-?-?)*[a-z\x{00a1}-\x{ffff}0-9]+)(?:\.([a-z\x{00a1}-\x{ffff}]{2,}))?))(:(\d{1,5}))?((\/|\?|#)[^\s]*)?$`)
+	dnsMatcher           *regexp.Regexp = regexp.MustCompile(`^[a-zA-Z]([a-zA-Z0-9\-]+[\.]?)*[a-zA-Z0-9]$`)
+	emailMatcher         *regexp.Regexp = regexp.MustCompile(`\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*`)
+	chineseMobileMatcher *regexp.Regexp = regexp.MustCompile(`^1(?:3\d|4[4-9]|5[0-35-9]|6[67]|7[013-8]|8\d|9\d)\d{8}$`)
+	chineseIdMatcher     *regexp.Regexp = regexp.MustCompile(`^[1-9]\d{5}(18|19|20|21|22)\d{2}((0[1-9])|(1[0-2]))(([0-2][1-9])|10|20|30|31)\d{3}[0-9Xx]$`)
+	chineseMatcher       *regexp.Regexp = regexp.MustCompile("[\u4e00-\u9fa5]")
+	chinesePhoneMatcher  *regexp.Regexp = regexp.MustCompile(`\d{3}-\d{8}|\d{4}-\d{7}`)
+	creditCardMatcher    *regexp.Regexp = regexp.MustCompile(`^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|(222[1-9]|22[3-9][0-9]|2[3-6][0-9]{2}|27[01][0-9]|2720)[0-9]{12}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\\d{3})\\d{11}|6[27][0-9]{14})$`)
+	base64Matcher        *regexp.Regexp = regexp.MustCompile(`^(?:[A-Za-z0-9+\\/]{4})*(?:[A-Za-z0-9+\\/]{2}==|[A-Za-z0-9+\\/]{3}=|[A-Za-z0-9+\\/]{4})$`)
+)

 // IsAlpha checks if the string contains only letters (a-zA-Z)
 func IsAlpha(str string) bool {
-	return isAlphaRegexMatcher.MatchString(str)
+	return alphaMatcher.MatchString(str)
 }

 // IsAllUpper check if the string is all upper case letters A-Z
@@ -62,11 +75,9 @@ func ContainLower(str string) bool {
 	return false
 }

-var containLetterRegexMatcher *regexp.Regexp = regexp.MustCompile(`[a-zA-Z]`)
-
 // ContainLetter check if the string contain at least one letter
 func ContainLetter(str string) bool {
-	return containLetterRegexMatcher.MatchString(str)
+	return letterRegexMatcher.MatchString(str)
 }

 // IsJSON checks if the string is valid JSON
@@ -86,11 +97,9 @@ func IsFloatStr(str string) bool {
 	return e == nil
 }

-var isIntStrRegexMatcher *regexp.Regexp = regexp.MustCompile(`^[\+-]?\d+$`)
-
 // IsIntStr check if the string can convert to a integer.
 func IsIntStr(str string) bool {
-	return isIntStrRegexMatcher.MatchString(str)
+	return intStrMatcher.MatchString(str)
 }

 // IsIp check if the string is a ip address.
@@ -125,8 +134,6 @@ func IsPort(str string) bool {
 	return false
 }

-var isUrlRegexMatcher *regexp.Regexp = regexp.MustCompile(`^((ftp|http|https?):\/\/)?(\S+(:\S*)?@)?((([1-9]\d?|1\d\d|2[01]\d|22[0-3])(\.(1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.([0-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(([a-zA-Z0-9]+([-\.][a-zA-Z0-9]+)*)|((www\.)?))?(([a-z\x{00a1}-\x{ffff}0-9]+-?-?)*[a-z\x{00a1}-\x{ffff}0-9]+)(?:\.([a-z\x{00a1}-\x{ffff}]{2,}))?))(:(\d{1,5}))?((\/|\?|#)[^\s]*)?$`)
-
 // IsUrl check if the string is url.
 func IsUrl(str string) bool {
 	if str == "" || len(str) >= 2083 || len(str) <= 3 || strings.HasPrefix(str, ".") {
@@ -143,64 +150,48 @@ func IsUrl(str string) bool {
 		return false
 	}

-	return isUrlRegexMatcher.MatchString(str)
+	return urlMatcher.MatchString(str)
 }

-var isDnsRegexMatcher *regexp.Regexp = regexp.MustCompile(`^[a-zA-Z]([a-zA-Z0-9\-]+[\.]?)*[a-zA-Z0-9]$`)
-
 // IsDns check if the string is dns.
 func IsDns(dns string) bool {
-	return isDnsRegexMatcher.MatchString(dns)
+	return dnsMatcher.MatchString(dns)
 }

-var isEmailRegexMatcher *regexp.Regexp = regexp.MustCompile(`\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*`)
-
 // IsEmail check if the string is a email address.
 func IsEmail(email string) bool {
-	return isEmailRegexMatcher.MatchString(email)
+	return emailMatcher.MatchString(email)
 }

-var isChineseMobileRegexMatcher *regexp.Regexp = regexp.MustCompile("^((13[0-9])|(14[5,7])|(15[0-3,5-9])|(17[0,3,5-8])|(18[0-9])|166|198|199|(147))\\d{8}$")
-
 // IsChineseMobile check if the string is chinese mobile number.
 func IsChineseMobile(mobileNum string) bool {
-	return isChineseMobileRegexMatcher.MatchString(mobileNum)
+	return chineseMobileMatcher.MatchString(mobileNum)
 }

-var isChineseIdNumRegexMatcher *regexp.Regexp = regexp.MustCompile(`^[1-9]\d{5}(18|19|20|21|22)\d{2}((0[1-9])|(1[0-2]))(([0-2][1-9])|10|20|30|31)\d{3}[0-9Xx]$`)
-
 // IsChineseIdNum check if the string is chinese id number.
 func IsChineseIdNum(id string) bool {
-	return isChineseIdNumRegexMatcher.MatchString(id)
+	return chineseIdMatcher.MatchString(id)
 }

-var containChineseRegexMatcher *regexp.Regexp = regexp.MustCompile("[\u4e00-\u9fa5]")
-
 // ContainChinese check if the string contain mandarin chinese.
 func ContainChinese(s string) bool {
-	return containChineseRegexMatcher.MatchString(s)
+	return chineseMatcher.MatchString(s)
 }

-var isChinesePhoneRegexMatcher *regexp.Regexp = regexp.MustCompile(`\d{3}-\d{8}|\d{4}-\d{7}`)
-
 // IsChinesePhone check if the string is chinese phone number.
 // Valid chinese phone is xxx-xxxxxxxx or xxxx-xxxxxxx
 func IsChinesePhone(phone string) bool {
-	return isChinesePhoneRegexMatcher.MatchString(phone)
+	return chinesePhoneMatcher.MatchString(phone)
 }

-var isCreditCardRegexMatcher *regexp.Regexp = regexp.MustCompile(`^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|(222[1-9]|22[3-9][0-9]|2[3-6][0-9]{2}|27[01][0-9]|2720)[0-9]{12}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\\d{3})\\d{11}|6[27][0-9]{14})$`)
-
 // IsCreditCard check if the string is credit card.
 func IsCreditCard(creditCart string) bool {
-	return isCreditCardRegexMatcher.MatchString(creditCart)
+	return creditCardMatcher.MatchString(creditCart)
 }

-var isBase64RegexMatcher *regexp.Regexp = regexp.MustCompile(`^(?:[A-Za-z0-9+\\/]{4})*(?:[A-Za-z0-9+\\/]{2}==|[A-Za-z0-9+\\/]{3}=|[A-Za-z0-9+\\/]{4})$`)
-
 // IsBase64 check if the string is base64 string.
 func IsBase64(base64 string) bool {
-	return isBase64RegexMatcher.MatchString(base64)
+	return base64Matcher.MatchString(base64)
 }

 // IsEmptyString check if the string is empty.
@@ -288,3 +279,40 @@ func IsZeroValue(value interface{}) bool {

 	return reflect.DeepEqual(rv.Interface(), reflect.Zero(rv.Type()).Interface())
 }
+
+// IsGBK check if data encoding is gbk
+// Note: this function is implemented by whether double bytes fall within the encoding range of gbk,
+// while each byte of utf-8 encoding format falls within the encoding range of gbk.
+// Therefore, utf8.valid() should be called first to check whether it is not utf-8 encoding,
+// and then call IsGBK() to check gbk encoding. like below
+/**
+	data := []byte("你好")
+	if utf8.Valid(data) {
+		fmt.Println("data encoding is utf-8")
+	}else if(IsGBK(data)) {
+		fmt.Println("data encoding is GBK")
+	}
+	fmt.Println("data encoding is unknown")
+**/
+func IsGBK(data []byte) bool {
+	i := 0
+	for i < len(data) {
+		if data[i] <= 0xff {
+			i++
+			continue
+		} else {
+			if data[i] >= 0x81 &&
+				data[i] <= 0xfe &&
+				data[i+1] >= 0x40 &&
+				data[i+1] <= 0xfe &&
+				data[i+1] != 0xf7 {
+				i += 2
+				continue
+			} else {
+				return false
+			}
+		}
+	}
+
+	return true
+}
--- a/validator/validator_test.go
+++ b/validator/validator_test.go
@@ -4,8 +4,10 @@ import (
 	"fmt"
 	"testing"
 	"time"
+	"unicode/utf8"

 	"github.com/duke-git/lancet/internal"
+	"golang.org/x/text/encoding/simplifiedchinese"
 )

 func TestIsAllUpper(t *testing.T) {
@@ -388,3 +390,13 @@ func TestIsZeroValue(t *testing.T) {
 		assert.Equal(false, IsZeroValue(value))
 	}
 }
+
+func TestIsGBK(t *testing.T) {
+	assert := internal.NewAssert(t, "TestIsGBK")
+
+	str := "你好"
+	gbkData, _ := simplifiedchinese.GBK.NewEncoder().Bytes([]byte(str))
+
+	assert.Equal(true, IsGBK(gbkData))
+	assert.Equal(false, utf8.Valid(gbkData))
+}
Author	SHA1	Message	Date
dudaodong	f3d73899b1	release v1.3.5	2022-12-15 16:36:15 +08:00
dudaodong	d4a20b239a	add new function	2022-12-15 16:35:33 +08:00
dudaodong	4c28431451	fix: fix lint issue	2022-12-15 16:31:04 +08:00
dudaodong	168ed096c7	fix: fix ExecCommand bug forwindows	2022-12-15 16:29:36 +08:00
dudaodong	a060769635	clean code	2022-12-15 16:27:21 +08:00
dudaodong	0a99492cf6	feat: add IsGBK	2022-12-15 16:21:09 +08:00
dudaodong	fb3de03f37	clean document	2022-12-15 16:13:32 +08:00
dudaodong	43c2fd2a22	feat: add UpperKebabCase/UpperSnakeCase	2022-12-15 16:05:02 +08:00
dudaodong	279d0754ba	release v1.3.4	2022-11-17 16:14:42 +08:00
dudaodong	f133b32faa	fix: issue#62: fix ZipSlip bug	2022-11-17 16:14:03 +08:00
dudaodong	b98d5edbb5	release v1.3.3	2022-11-08 15:14:34 +08:00
dudaodong	9e39c31087	docs: update doc for random package	2022-11-08 15:03:42 +08:00
dudaodong	26bc40c614	feat: add new random function	2022-11-08 14:54:17 +08:00