# lancet **Repository Path**: aviptle/lancet ## Basic Information - **Project Name**: lancet - **Description**: No description available - **Primary Language**: Go - **License**: MIT - **Default Branch**: main - **Homepage**: None - **GVP Project**: No ## Statistics - **Stars**: 1 - **Forks**: 0 - **Created**: 2024-08-28 - **Last Updated**: 2024-09-20 ## Categories & Tags **Categories**: Uncategorized **Tags**: None ## README

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lancet（柳叶刀）是一个全面、高效、可复用的go语言工具函数库。 lancet受到了java apache common包和lodash.js的启发。

## 官网 | [English](./README.md) ## 特性 - 👏 全面、高效、可复用。 - 💪 600+常用 go 工具函数，支持 string、slice、datetime、net、crypt... - 💅 只依赖 go 标准库和 golang.org/x。 - 🌍 所有导出函数单元测试覆盖率 100%。 ## 安装 ### Note: 1. 使用 go1.18 及以上版本的用户，建议安装 v2.x.x。 因为 v2.x.x 应用 go1.18 的泛型重写了大部分函数。 ```go go get github.com/duke-git/lancet/v2 //安装v2最新版本v2.x.x ``` 2. 使用 go1.18 以下版本的用户，必须安装 v1.x.x。目前最新的 v1 版本是 v1.4.3。 ```go go get github.com/duke-git/lancet// 使用go1.18以下版本, 必须安装v1.x.x版本 ``` ## 用法 lancet 是以包的结构组织代码的，使用时需要导入相应的包名。例如：如果使用字符串相关函数，需要导入 strutil 包: ```go import "github.com/duke-git/lancet/v2/strutil" ``` ## 示例 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 import ( "fmt" "github.com/duke-git/lancet/v2/strutil" ) func main() { s := "hello" rs := strutil.Reverse(s) fmt.Println(rs) //olleh } ``` ## 文档 ### 目录 - [Algorithm](#user-content-algorithm) - [Compare](#user-content-compare) - [Concurrency](#user-content-concurrency) - [Condition](#user-content-condition) - [Convertor](#user-content-convertor) - [Cryptor](#user-content-cryptor) - [Datetime](#user-content-datetime) - [Datastructure](#user-content-datastructure) - [Fileutil](#user-content-fileutil) - [Formatter](#user-content-formatter) - [Function](#user-content-function) - [Maputil](#user-content-maputil) - [Mathutil](#user-content-mathutil) - [Netutil](#user-content-netutil) - [Pointer](#user-content-pointer) - [Random](#user-content-random) - [Retry](#user-content-retry) - [Slice](#user-content-slice) - [Stream](#user-content-stream) - [Structs](#user-content-structs) - [Strutil](#user-content-strutil) - [System](#user-content-system) - [Tuple](#user-content-tuple) - [Validator](#user-content-validator) - [Xerror](#user-content-xerror)

1. algorithm 包实现一些基本查找和排序算法。        回到目录

```go import "github.com/duke-git/lancet/v2/algorithm" ``` #### 函数列表: - **BubbleSort** : 使用冒泡排序算法对切片进行排序。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/algorithm.md#BubbleSort)] [[play](https://go.dev/play/p/GNdv7Jg2Taj)] - **CountSort** : 使用计数排序算法对切片进行排序。不改变原数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/algorithm.md#CountSort)] [[play](https://go.dev/play/p/tB-Umgm0DrP)] - **HeapSort** : 使用堆排序算法对切片进行排序。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/algorithm.md#HeapSort)] [[play](https://go.dev/play/p/u6Iwa1VZS_f)] - **InsertionSort** : 使用插入排序算法对切片进行排序。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/algorithm.md#InsertionSort)] [[play](https://go.dev/play/p/G5LJiWgJJW6)] - **MergeSort** : 使用合并排序算法对切片进行排序。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/algorithm.md#MergeSort)] [[play](https://go.dev/play/p/ydinn9YzUJn)] - **QuickSort** : 使用快速排序算法对切片进行排序。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/algorithm.md#QuickSort)] [[play](https://go.dev/play/p/7Y7c1Elk3ax)] - **SelectionSort** : 使用选择排序算法对切片进行排序。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/algorithm.md#SelectionSort)] [[play](https://go.dev/play/p/oXovbkekayS)] - **ShellSort** : 使用希尔排序算法对切片进行排序。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/algorithm.md#ShellSort)] [[play](https://go.dev/play/p/3ibkszpJEu3)] - **BinarySearch** : 返回排序切片中目标值的索引，使用二分搜索（递归调用）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/algorithm.md#BinarySearch)] [[play](https://go.dev/play/p/t6MeGiUSN47)] - **BinaryIterativeSearch** :返回排序切片中目标值的索引，使用二分搜索（非递归）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/algorithm.md#BinaryIterativeSearch)] [[play](https://go.dev/play/p/Anozfr8ZLH3)] - **LinearSearch** : 基于传入的相等函数返回切片中目标值的索引。（线性查找） [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/algorithm.md#LinearSearch)] [[play](https://go.dev/play/p/IsS7rgn5s3x)] - **LRUCache** : 应用 lru 算法实现内存缓存. [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/algorithm.md#LRUCache)] [[play](https://go.dev/play/p/-EZjgOURufP)]

2. compare 包提供几个轻量级的类型比较函数。       回到目录

```go import "github.com/duke-git/lancet/v2/compare" ``` #### 函数列表: - **Equal** : 检查两个值是否相等(检查类型和值)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/compare.md#Equal)] [[play](https://go.dev/play/p/wmVxR-to4lz)] - **EqualValue** : 检查两个值是否相等(只检查值)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/compare.md#EqualValue)] [[play](https://go.dev/play/p/fxnna_LLD9u)] - **LessThan** : 验证参数`left`的值是否小于参数`right`的值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/compare.md#LessThan)] [[play](https://go.dev/play/p/cYh7FQQj0ne)] - **GreaterThan** : 验证参数`left`的值是否大于参数`right`的值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/compare.md#GreaterThan)] [[play](https://go.dev/play/p/9-NYDFZmIMp)] - **LessOrEqual** : 验证参数`left`的值是否小于或等于参数`right`的值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/compare.md#LessOrEqual)] [[play](https://go.dev/play/p/e4T_scwoQzp)] - **GreaterOrEqual** : 验证参数`left`的值是否大于或等于参数`right`的值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/compare.md#GreaterOrEqual)] [[play](https://go.dev/play/p/vx8mP0U8DFk)] - **InDelta** : 检查增量内两个值是否相等。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/compare.md#InDelta)]

3. concurrency 包含一些支持并发编程的功能。例如：goroutine, channel, async 等。       回到目录

```go import "github.com/duke-git/lancet/v2/concurrency" ``` #### 函数列表: - **NewChannel** : 返回一个 Channel 指针实例。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/concurrency.md#NewChannel)] [[play](https://go.dev/play/p/7aB4KyMMp9A)] - **Bridge** : 将多个 channel 链接到一个 channel，直到取消上下文。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/Bridge.md#NewChannel)] [[play](https://go.dev/play/p/qmWSy1NVF-Y)] - **FanIn** : 将多个 channel 合并为一个 channel，直到取消上下文。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/concurrency.md#FanIn)] [[play](https://go.dev/play/p/2VYFMexEvTm)] - **Generate** : 根据传入的值，生成 channel。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/concurrency.md#Generate)] [[play](https://go.dev/play/p/7aB4KyMMp9A)] - **Or** : 将一个或多个 channel 读取到一个 channel 中，当任何读取 channel 关闭时将结束读取。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/concurrency.md#Or)] [[play](https://go.dev/play/p/Wqz9rwioPww)] - **OrDone** : 将一个 channel 读入另一个 channel，直到取消上下文。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/concurrency.md#OrDone)] [[play](https://go.dev/play/p/lm_GoS6aDjo)] - **Repeat** : 返回一个 channel，将参数`values`重复放入 channel，直到取消上下文。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/concurrency.md#Repeat)] [[play](https://go.dev/play/p/k5N_ALVmYjE)] - **RepeatFn** : 返回一个 channel，重复执行函数 fn，并将结果放入返回的 channel，直到取消上下文。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/concurrency.md#RepeatFn)] [[play](https://go.dev/play/p/4J1zAWttP85)] - **Take** : 返回一个 channel，其值从另一个 channel 获取，直到取消上下文。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/concurrency.md#Take)] [[play](https://go.dev/play/p/9Utt-1pDr2J)] - **Tee** : 将一个 channel 分成两个 channel，直到取消上下文。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/concurrency.md#Tee)] [[play](https://go.dev/play/p/3TQPKnCirrP)]

4. condition 包含一些用于条件判断的函数。       回到目录

```go import "github.com/duke-git/lancet/v2/condition" ``` #### 函数列表: - **Bool** : 返回传入参数的 bool 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/condition.md#Bool)] [[play](https://go.dev/play/p/ETzeDJRSvhm)] - **And** : 逻辑且操作，当切仅当 a 和 b 都为 true 时返回 true。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/condition.md#And)] [[play](https://go.dev/play/p/W1SSUmt6pvr)] - **Or** : 逻辑或操作，当切仅当 a 和 b 都为 false 时返回 false。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/condition.md#Or)] [[play](https://go.dev/play/p/UlQTxHaeEkq)] - **Xor** : 逻辑异或操作，a 和 b 相同返回 false，a 和 b 不相同返回 true [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/condition.md#Xor)] [[play](https://go.dev/play/p/gObZrW7ZbG8)] - **Nor** : 异或的取反操作。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/condition.md#Nor)] [[play](https://go.dev/play/p/g2j08F_zZky)] - **Xnor** : 如果 a 和 b 都是真的或 a 和 b 均是假的，则返回 true。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/condition.md#Xnor)] [[play](https://go.dev/play/p/OuDB9g51643)] - **Nand** : 如果 a 和 b 都为真，返回 false，否则返回 true [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/condition.md#Nand)] [[play](https://go.dev/play/p/vSRMLxLIbq8)] - **TernaryOperator** : 三元运算符。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/condition.md#TernaryOperator)] [[play](https://go.dev/play/p/ElllPZY0guT)]

5. convertor 转换器包支持一些常见的数据类型转换。       回到目录

```go import "github.com/duke-git/lancet/v2/convertor" ``` #### 函数列表: - **ColorHexToRGB** : 颜色值十六进制转 rgb。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ColorHexToRGB)] [[play](https://go.dev/play/p/o7_ft-JCJBV)] - **ColorRGBToHex** : 颜色值 rgb 转十六进制。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ColorRGBToHex)] [[play](https://go.dev/play/p/nzKS2Ro87J1)] - **ToBool** : 字符串转布尔类型，使用 strconv.ParseBool。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToBool)] [[play](https://go.dev/play/p/ARht2WnGdIN)] - **ToBytes** : interface 转字节切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToBytes)] [[play](https://go.dev/play/p/fAMXYFDvOvr)] - **ToChar** : 字符串转字符切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToChar)] [[play](https://go.dev/play/p/JJ1SvbFkVdM)] - **ToChannel** : 将切片转为只读 channel。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToChannel)] [[play](https://go.dev/play/p/hOx_oYZbAnL)] - **ToFloat** : 将 interface 转成 float64 类型，如果参数无法转换，会返回 0.0 和 error。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToFloat)] [[play](https://go.dev/play/p/4YTmPCibqHJ)] - **ToInt** : 将 interface 转成 int64 类型，如果参数无法转换，会返回 0 和 error。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToInt)] [[play](https://go.dev/play/p/9_h9vIt-QZ_b)] - **ToJson** : 将 interface 转成 json 字符串，如果参数无法转换，会返回""和 error。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToJson)] [[play](https://go.dev/play/p/2rLIkMmXWvR)] - **ToMap** : 将切片转为 map。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToMap)] [[play](https://go.dev/play/p/tVFy7E-t24l)] - **ToPointer** : 返回传入值的指针。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToPointer)] [[play](https://go.dev/play/p/ASf_etHNlw1)] - **ToString** : 将值转换为字符串，对于数字、字符串、[]byte，将转换为字符串。 对于其他类型（切片、映射、数组、结构）将调用 json.Marshal。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToString)] [[play](https://go.dev/play/p/nF1zOOslpQq)] - **StructToMap** : 将 struct 转成 map，只会转换 struct 中可导出的字段。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#StructToMap)] [[play](https://go.dev/play/p/KYGYJqNUBOI)] - **MapToSlice** : map 中 key 和 value 执行函数 iteratee 后，转为切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#MapToSlice)] [[play](https://go.dev/play/p/dmX4Ix5V6Wl)] - **EncodeByte** : 将传入的 data 编码成字节切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#EncodeByte)] [[play](https://go.dev/play/p/DVmM1G5JfuP)] - **DecodeByte** : 解码字节切片到目标对象，目标对象需要传入一个指针实例。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#DecodeByte)] [[play](https://go.dev/play/p/zI6xsmuQRbn)] - **DeepClone** : 创建一个传入值的深拷贝, 无法克隆结构体的非导出字段。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#DeepClone)] [[play](https://go.dev/play/p/j4DP5dquxnk)] - **CopyProperties** : 拷贝不同结构体之间的同名字段。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#CopyProperties)] [[play](https://go.dev/play/p/oZujoB5Sgg5)] - **ToInterface** : 将反射值转换成对应的 interface 类型。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToInterface)] [[play](https://go.dev/play/p/syqw0-WG7Xd)] - **Utf8ToGbk** : utf8 编码转 GBK 编码。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#Utf8ToGbk)] [[play](https://go.dev/play/p/9FlIaFLArIL)] - **GbkToUtf8** : GBK 编码转 utf8 编码。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#GbkToUtf8)] [[play](https://go.dev/play/p/OphmHCN_9u8)] - **ToStdBase64** : 将值转换为StdBase64编码的字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToStdBase64)] - **ToUrlBase64** : 将值转换为url Base64编码的字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToUrlBase64)] - **ToRawStdBase64** : 将值转换为RawStdBase64编码的字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToRawStdBase64)] - **ToRawUrlBase64** : 将值转换为RawUrlBase64编码的字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/convertor.md#ToRawUrlBase64)]

6. 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。       回到目录

```go import "github.com/duke-git/lancet/v2/cryptor" ``` #### 函数列表: - **AesEcbEncrypt** : 使用 AES ECB 算法模式加密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#AesEcbEncrypt)] [[play](https://go.dev/play/p/zI6xsmuQRbn)] - **AesEcbDecrypt** : 使用 AES ECB 算法模解密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#AesEcbDecrypt)] [[play](https://go.dev/play/p/zI6xsmuQRbn)] - **AesCbcEncrypt** : 使用 AES CBC 算法模式加密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#AesCbcEncrypt)] [[play](https://go.dev/play/p/IOq_g8_lKZD)] - **AesCbcDecrypt** : 使用 AES CBC 算法模式解密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#AesCbcDecrypt)] [[play](https://go.dev/play/p/IOq_g8_lKZD)] - **AesCtrCrypt** : 使用 AES CTR 算法模式加密/解密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#AesCtrCrypt)] [[play](https://go.dev/play/p/SpaZO0-5Nsp)] - **AesCfbEncrypt** : 使用 AES CFB 算法模式加密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#AesCfbEncrypt)] [[play](https://go.dev/play/p/tfkF10B13kH)] - **AesCfbDecrypt** : 使用 AES CFB 算法模式解密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#AesCfbDecrypt)] [[play](https://go.dev/play/p/tfkF10B13kH)] - **AesOfbEncrypt** : 使用 AES OFB 算法模式加密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#AesOfbEncrypt)] [[play](https://go.dev/play/p/VtHxtkUj-3F)] - **AesOfbDecrypt** : 使用 AES OFB 算法模式解密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#AesOfbDecrypt)] [[play](https://go.dev/play/p/VtHxtkUj-3F)] - **Base64StdEncode** : 将字符串 base64 编码。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#Base64StdEncode)] [[play](https://go.dev/play/p/VOaUyQUreoK)] - **Base64StdDecode** : 解码 base64 字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#Base64StdDecode)] [[play](https://go.dev/play/p/RWQylnJVgIe)] - **DesEcbEncrypt** : 使用 DES ECB 算法模式加密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#DesEcbEncrypt)] [[play](https://go.dev/play/p/8qivmPeZy4P)] - **DesEcbDecrypt** : 使用 DES ECB 算法模解密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#DesEcbDecrypt)] [[play](https://go.dev/play/p/8qivmPeZy4P)] - **DesCbcEncrypt** : 使用 DES CBC 算法模式加密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#DesCbcEncrypt)] [[play](https://go.dev/play/p/4cC4QvWfe3_1)] - **DesCbcDecrypt** : 使用 DES CBC 算法模式解密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#DesCbcDecrypt)] [[play](https://go.dev/play/p/4cC4QvWfe3_1)] - **DesCtrCrypt** : 使用 DES CTR 算法模式加密/解密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#DesCtrCrypt)] [[play](https://go.dev/play/p/9-T6OjKpcdw)] - **DesCfbEncrypt** : 使用 DES CFB 算法模式加密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#DesCfbEncrypt)] [[play](https://go.dev/play/p/y-eNxcFBlxL)] - **DesCfbDecrypt** : 使用 DES CFB 算法模式解密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#DesCfbDecrypt)] [[play](https://go.dev/play/p/y-eNxcFBlxL)] - **DesOfbEncrypt** : 使用 DES OFB 算法模式加密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#DesOfbEncrypt)] [[play](https://go.dev/play/p/74KmNadjN1J)] - **DesOfbDecrypt** : 使用 DES OFB 算法模式解密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#DesOfbDecrypt)] [[play](https://go.dev/play/p/74KmNadjN1J)] - **HmacMd5** : 返回字符串 md5 hmac 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#HmacMd5)] [[play](https://go.dev/play/p/uef0q1fz53I)] - **HmacMd5WithBase64** : 获取字符串 md5 hmac base64 字符串值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#HmacMd5WithBase64)] [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#HmacMd5WithBase64)] - **HmacSha1** : 返回字符串 sha1 hmac 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#HmacSha1)] [[play](https://go.dev/play/p/1UI4oQ4WXKM)] - **HmacSha1WithBase64** : 获取字符串的 sha1 base64 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#HmacSha1WithBase64)] [[play](https://go.dev/play/p/47JmmGrnF7B)] - **HmacSha256** : 返回字符串 sha256 hmac 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#HmacSha256)] [[play](https://go.dev/play/p/HhpwXxFhhC0)] - **HmacSha256WithBase64** : 获取字符串 sha256 hmac base64 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#HmacSha256WithBase64)] [[play](https://go.dev/play/p/EKbkUvPTLwO)] - **HmacSha512** : 返回字符串 sha256 hmac 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#HmacSha512)] [[play](https://go.dev/play/p/59Od6m4A0Ud)] - **HmacSha512WithBase64** : 获取字符串 sha512 hmac base64 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#HmacSha512WithBase64)] [[play](https://go.dev/play/p/c6dSe3E2ydU)] - **Md5Byte** : 返回 byte slice 的 md5 值. [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#Md5Byte)] [[play](https://go.dev/play/p/suraalH8lyC)] - **Md5ByteWithBase64** : 获取 byte slice 的 md5 base64 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#Md5ByteWithBase64)] [[play](https://go.dev/play/p/Tcb-Z7LN2ax)] - **Md5String** : 返回字符串 md5 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#Md5String)] [[play](https://go.dev/play/p/1bLcVetbTOI)] - **Md5StringWithBase64** : 获取字符串 md5 base64 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#Md5StringWithBase64)] [[play](https://go.dev/play/p/Lx4gH7Vdr5_y)] - **Md5File** : 返回文件 md5 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#Md5File)] - **Sha1** : 返回字符串 sha1 哈希值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#Sha1)] [[play](https://go.dev/play/p/_m_uoD1deMT)] - **Sha1WithBase64** : 获取字符串 sha1 base64 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#Sha1WithBase64)] [[play](https://go.dev/play/p/fSyx-Gl2l2-)] - **Sha256** :返回字符串 sha256 哈希值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#Sha256)] [[play](https://go.dev/play/p/tU9tfBMIAr1)] - **Sha256WithBase64** : 获取字符串 sha256 base64 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#Sha256WithBase64)] [[play](https://go.dev/play/p/85IXJHIal1k)] - **Sha512** : 返回字符串 sha512 哈希值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#Sha512)] [[play](https://go.dev/play/p/3WsvLYZxsHa)] - **Sha512WithBase64** : 获取字符串 sha512 base64 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#Sha512WithBase64)] [[play](https://go.dev/play/p/q_fY2rA-k5I)] - **GenerateRsaKey** : 在当前目录下创建 rsa 私钥文件和公钥文件。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#GenerateRsaKey)] [[play](https://go.dev/play/p/zutRHrDqs0X)] - **RsaEncrypt** : 用公钥文件 ras 加密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#RsaEncrypt)] [[play](https://go.dev/play/p/uef0q1fz53I)] - **RsaDecrypt** : 用私钥文件 rsa 解密数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#RsaDecrypt)] [[play](https://go.dev/play/p/uef0q1fz53I)] - **GenerateRsaKeyPair** : 创建rsa公钥私钥和key。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#GenerateRsaKeyPair)] [[play](https://go.dev/play/p/sSVmkfENKMz)] - **RsaEncryptOAEP** : rsa OAEP加密。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#RsaEncryptOAEP)] [[play](https://go.dev/play/p/sSVmkfENKMz)] - **RsaDecryptOAEP** : rsa OAEP解密。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/cryptor.md#RsaDecryptOAEP)] [[play](https://go.dev/play/p/sSVmkfENKMz)]

7. datetime 日期时间处理包，格式化日期，比较日期。       回到目录

```go import "github.com/duke-git/lancet/v2/datetime" ``` #### 函数列表: - **AddDay** : 将日期加/减天数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#AddDay)] [[play](https://go.dev/play/p/dIGbs_uTdFa)] - **AddHour** : 将日期加/减小时数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#AddHour)] [[play](https://go.dev/play/p/rcMjd7OCsi5)] - **AddMinute** : 将日期加/减分钟数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#AddMinute)] [[play](https://go.dev/play/p/nT1heB1KUUK)] - **AddYear** : 将日期加/减分年数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#AddYear)] [[play](https://go.dev/play/p/MqW2ujnBx10)] - **BeginOfMinute** : 返回指定时间的分钟开始时间。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#BeginOfMinute)] [[play](https://go.dev/play/p/ieOLVJ9CiFT)] - **BeginOfHour** : 返回指定时间的小时开始时间。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#BeginOfHour)] [[play](https://go.dev/play/p/GhdGFnDWpYs)] - **BeginOfDay** : 返回指定时间的当天开始时间。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#BeginOfDay)] [[play](https://go.dev/play/p/94m_UT6cWs9)] - **BeginOfWeek** : 返回指定时间的每周开始时间,默认开始时间星期日。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#BeginOfWeek)] [[play](https://go.dev/play/p/ynjoJPz7VNV)] - **BeginOfMonth** : 返回指定时间的当月开始时间。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#BeginOfMonth)] [[play](https://go.dev/play/p/bWXVFsmmzwL)] - **BeginOfYear** : 返回指定时间的当年开始时间。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#BeginOfYear)] [[play](https://go.dev/play/p/i326DSwLnV8)] - **EndOfMinute** : 返回指定时间的分钟结束时间。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#EndOfMinute)] [[play](https://go.dev/play/p/yrL5wGzPj4z)] - **EndOfHour** : 返回指定时间的小时结束时间。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#EndOfHour)] [[play](https://go.dev/play/p/6ce3j_6cVqN)] - **EndOfDay** : 返回指定时间的当天结束时间。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#EndOfDay)] [[play](https://go.dev/play/p/eMBOvmq5Ih1)] - **EndOfWeek** : 返回指定时间的星期结束时间,默认结束时间星期六。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#EndOfWeek)] [[play](https://go.dev/play/p/i08qKXD9flf)] - **EndOfMonth** : 返回指定时间的月份结束时间。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#EndOfMonth)] [[play](https://go.dev/play/p/_GWh10B3Nqi)] - **EndOfYear** : 返回指定时间的年份结束时间。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#EndOfYear)] [[play](https://go.dev/play/p/G01cKlMCvNm)] - **GetNowDate** : 获取当天日期，返回格式：yyyy-mm-dd。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#GetNowDate)] [[play](https://go.dev/play/p/PvfkPpcpBBf)] - **GetNowTime** : 获取当时时间，返回格式：hh:mm:ss。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#GetNowTime)] [[play](https://go.dev/play/p/l7BNxCkTmJS)] - **GetNowDateTime** : 获取当时日期和时间，返回格式：yyyy-mm-dd hh:mm:ss。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#GetNowDateTime)] [[play](https://go.dev/play/p/pI4AqngD0al)] - **GetTodayStartTime** : 返回当天开始时间， 格式: yyyy-mm-dd 00:00:00。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#GetTodayStartTime)] [[play](https://go.dev/play/p/84siyYF7t99)] - **GetTodayEndTime** : 返回当天结束时间，格式: yyyy-mm-dd 23:59:59。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#GetTodayEndTime)] [[play](https://go.dev/play/p/jjrLnfoqgn3)] - **GetZeroHourTimestamp** : 获取零时时间戳(timestamp of 00:00)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#GetZeroHourTimestamp)] [[play](https://go.dev/play/p/QmL2oIaGE3q)] - **GetNightTimestamp** : 获取午夜时间戳(timestamp of 23:59)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#GetNightTimestamp)] [[play](https://go.dev/play/p/UolysR3MYP1)] - **FormatTimeToStr** : 将日期格式化成字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#FormatTimeToStr)] [[play](https://go.dev/play/p/_Ia7M8H_OvE)] - **FormatStrToTime** : 将字符串格式化成时间。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#FormatStrToTime)] [[play](https://go.dev/play/p/1h9FwdU8ql4)] - **NewUnix** : 创建一个 unix 时间戳。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#NewUnix)] [[play](https://go.dev/play/p/psoSuh_kLRt)] - **NewUnixNow** : 创建一个当前时间的 unix 时间戳。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#NewUnixNow)] [[play](https://go.dev/play/p/U4PPx-9D0oz)] - **NewFormat** : 创建一个 yyyy-mm-dd hh:mm:ss 格式时间字符串的 unix 时间戳。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#NewFormat)] [[play](https://go.dev/play/p/VkW08ZOaXPZ)] - **NewISO8601** : 创建一个 iso8601 格式时间字符串的 unix 时间戳。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#NewISO8601)] [[play](https://go.dev/play/p/mkhOHQkdeA2)] - **ToUnix** : 返回 unix 时间戳。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#ToUnix)] [[play](https://go.dev/play/p/_LUiwAdocjy)] - **ToFormat** : 返回格式'yyyy-mm-dd hh:mm:ss'的日期字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#ToFormat)] [[play](https://go.dev/play/p/VkW08ZOaXPZ)] - **ToFormatForTpl** : 返回 tpl 格式指定的日期字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#ToFormatForTpl)] [[play](https://go.dev/play/p/nyXxXcQJ8L5)] - **ToIso8601** : 返回 iso8601 日期字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#ToIso8601)] [[play](https://go.dev/play/p/mkhOHQkdeA2)] - **IsLeapYear** :验证是否是闰年。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#IsLeapYear)] [[play](https://go.dev/play/p/xS1eS2ejGew)] - **BetweenSeconds** : 返回两个时间的间隔秒数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#BetweenSeconds)] [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#BetweenSeconds)] - **DayOfYear** : 返回参数日期是一年中的第几天。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#DayOfYear)] [[play](https://go.dev/play/p/0hjqhTwFNlH)] - **IsWeekend** : 判断日期是否是周末。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#IsWeekend)] [[play](https://go.dev/play/p/cupRM5aZOIY)] - **NowDateOrTime** : 根据指定的格式和时区返回当前时间字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#NowDateOrTime)] [[play](https://go.dev/play/p/EZ-begEjtT0)] - **Timestamp** : 返回当前秒级时间戳。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#Timestamp)] [[play](https://go.dev/play/p/iU5b7Vvjx6x)] - **TimestampMilli** : 返回当前毫秒级时间戳。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#TimestampMilli)] [[play](https://go.dev/play/p/4gvEusOTu1T)] - **TimestampMicro** : 返回当前微秒级时间戳。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#TimestampMicro)] [[play](https://go.dev/play/p/2maANglKHQE)] - **TimestampNano** : 返回当前纳秒级时间戳。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datetime.md#TimestampNano)] [[play](https://go.dev/play/p/A9Oq_COrcCF)]

8. datastructure 包含一些普通的数据结构实现。例如：list, linklist, stack, queue, set, tree, graph。       回到目录

```go import list "github.com/duke-git/lancet/v2/datastructure/list" import copyonwritelist "github.com/duke-git/lancet/v2/datastructure/copyonwritelist" import link "github.com/duke-git/lancet/v2/datastructure/link" import stack "github.com/duke-git/lancet/v2/datastructure/stack" import queue "github.com/duke-git/lancet/v2/datastructure/queue" import set "github.com/duke-git/lancet/v2/datastructure/set" import tree "github.com/duke-git/lancet/v2/datastructure/tree" import heap "github.com/duke-git/lancet/v2/datastructure/heap" import hashmap "github.com/duke-git/lancet/v2/datastructure/hashmap" ``` #### 函数列表: - **List** : 线性表结构, 用切片实现。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datastructure/list.md)] - **CopyOnWriteList** : 是一个线程安全的 List 实现，底层使用 go 切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datastructure/copyonwritelist.md)] - **Link** : 链表解构, 包括单链表和双向链表。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datastructure/link.md)] - **Stack** : 栈结构(fifo), 包括数组栈和链表栈。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datastructure/stack.md)] - **Queue** : 队列结构(filo), 包括数组队列，链表队列，循环队列，优先级队列。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datastructure/queue.md)] - **Set** : 集合（set）结构。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datastructure/set.md)] - **Tree** : 二叉搜索树。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datastructure/tree.md)] - **Heap** : 二叉 max 堆。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datastructure/heap.md)] - **Hashmap** : 哈希映射。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/datastructure/hashmap.md)]

9. fileutil 包含文件基本操作。       回到目录

```go import "github.com/duke-git/lancet/v2/fileutil" ``` #### 函数列表： - **ClearFile** : 清空文件内容。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#ClearFile)] [[play](https://go.dev/play/p/NRZ0ZT-G94H)] - **CreateFile** : 创建文件，创建成功返回 true, 否则返回 false。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#CreateFile)] [[play](https://go.dev/play/p/lDt8PEsTNKI)] - **CreateDir** : 创建嵌套目录，例如/a/, /a/b/。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#CreateDir)] [[play](https://go.dev/play/p/qUuCe1OGQnM)] - **CopyFile** : 拷贝文件，会覆盖原有的文件。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#CopyFile)] [[play](https://go.dev/play/p/Jg9AMJMLrJi)] - **CopyDir** : 拷贝目录。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#CopyDir)] [[play](https://go.dev/play/p/YAyFTA_UuPb)] - **FileMode** : 获取文件 mode 信息。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#FileMode)] [[play](https://go.dev/play/p/2l2hI42fA3p)] - **MiMeType** : 获取文件 mime 类型, 参数的类型必须是 string 或者\*os.File。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#MiMeType)] [[play](https://go.dev/play/p/bd5sevSUZNu)] - **IsExist** : 判断文件或目录是否存在。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#IsExist)] [[play](https://go.dev/play/p/nKKXt8ZQbmh)] - **IsLink** : 判断文件是否是符号链接。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#IsLink)] [[play](https://go.dev/play/p/TL-b-Kzvf44)] - **IsDir** : 判断参数是否是目录。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#IsDir)] [[play](https://go.dev/play/p/WkVwEKqtOWk)] - **ListFileNames** : 返回目录下所有文件名。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#ListFileNames)] [[play](https://go.dev/play/p/Tjd7Y07rejl)] - **RemoveFile** : 删除文件。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#RemoveFile)] [[play](https://go.dev/play/p/P2y0XW8a1SH)] - **ReadFileToString** : 读取文件内容并返回字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#ReadFileToString)] [[play](https://go.dev/play/p/cmfwp_5SQTp)] - **ReadFileByLine** : 按行读取文件内容，返回字符串切片包含每一行。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#ReadFileByLine)] [[play](https://go.dev/play/p/svJP_7ZrBrD)] - **Zip** : zip 压缩文件, 参数可以是文件或目录。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#Zip)] [[play](https://go.dev/play/p/j-3sWBp8ik_P)] - **ZipAppendEntry** : 通过将单个文件或目录追加到现有的 zip 文件。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#ZipAppendEntry)] - **UnZip** : zip 解压缩文件并保存在目录中。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#UnZip)] [[play](https://go.dev/play/p/g0w34kS7B8m)] - **CurrentPath** : 返回当前位置的绝对路径。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#CurrentPath)] [[play](https://go.dev/play/p/s74a9iBGcSw)] - **IsZipFile** : 判断文件是否是 zip 压缩文件。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#IsZipFile)] [[play](https://go.dev/play/p/9M0g2j_uF_e)] - **FileSize** : 返回文件字节大小。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#FileSize)] [[play](https://go.dev/play/p/H9Z05uD-Jjc)] - **MTime** : 返回文件修改时间(unix timestamp)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#MTime)] [[play](https://go.dev/play/p/s_Tl7lZoAaY)] - **Sha** : 返回文件 sha 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#Sha)] [[play](https://go.dev/play/p/VfEEcO2MJYf)] - **ReadCsvFile** : 读取 csv 文件内容到切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#ReadCsvFile)] [[play](https://go.dev/play/p/OExTkhGEd3_u)] - **WriteCsvFile** : 向csv文件写入切片数据。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#WriteCsvFile)] - **WriteMapsToCsv** : 将map切片写入csv文件中。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#WriteMapsToCsv)] [[play](https://go.dev/play/p/umAIomZFV1c)] - **WriteBytesToFile** : 将 bytes 写入文件。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#WriteBytesToFile)] [[play](https://go.dev/play/p/s7QlDxMj3P8)] - **WriteStringToFile** : 将字符串写入文件。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#WriteStringToFile)] [[play](https://go.dev/play/p/GhLS6d8lH_g)] - **ReadFile** : 读取文件或者URL。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#ReadFile)] - **ChunkRead** : 从文件的指定偏移读取块并返回块内所有行。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#ChunkRead)] [[play](https://go.dev/play/p/r0hPmKWhsgf)] - **ParallelChunkRead** : 并行读取文件并将每个块的行发送到指定通道。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/fileutil.md#ParallelChunkRead)] [[play](https://go.dev/play/p/teMXnCsdSEw)]

10. formatter 格式化器包含一些数据格式化处理方法。       回到目录

```go import "github.com/duke-git/lancet/v2/formatter" ``` #### 函数列表: - **Comma** : 用逗号每隔 3 位分割数字/字符串，支持前缀添加符号。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/formatter.md#Comma)] [[play](https://go.dev/play/p/eRD5k2vzUVX)] - **Pretty** : 返回 pretty JSON 字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/formatter.md#Pretty)] [[play](https://go.dev/play/p/YsciGj3FH2x)] - **PrettyToWriter** : Pretty encode 数据到 writer。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/formatter.md#PrettyToWriter)] [[play](https://go.dev/play/p/LPLZ3lDi5ma)] - **DecimalBytes** : 返回十进制标准（以 1000 为基数）下的可读字节单位字符串。precision 参数指定小数点后的位数，默认为 4。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/formatter.md#DecimalBytes)] [[play](https://go.dev/play/p/FPXs1suwRcs)] - **BinaryBytes** : 返回 binary 标准（以 1024 为基数）下的可读字节单位字符串。precision 参数指定小数点后的位数，默认为 4。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/formatter.md#BinaryBytes)] [[play](https://go.dev/play/p/G9oHHMCAZxP)] - **ParseDecimalBytes** : 将字节单位字符串转换成其所表示的字节数（以 1000 为基数）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/formatter.md#ParseDecimalBytes)] [[play](https://go.dev/play/p/Am98ybWjvjj)] - **ParseBinaryBytes** : 将字节单位字符串转换成其所表示的字节数（以 1024 为基数）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/formatter.md#ParseBinaryBytes)] [[play](https://go.dev/play/p/69v1tTT62x8)]

11. function 函数包控制函数执行流程，包含部分函数式编程。       回到目录

```go import "github.com/duke-git/lancet/v2/function" ``` #### 函数列表: - **After** : 创建一个函数，当该函数被调用 n 或更多次之后将执行传入的函数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#After)] [[play](https://go.dev/play/p/eRD5k2vzUVX)] - **Before** : 创建一个函数，当该函数被调用不超过 n 次时，将执行执行传入的函数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#Before)] [[play](https://go.dev/play/p/0HqUDIFZ3IL)] - **CurryFn** : 创建柯里化函数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#CurryFn)] [[play](https://go.dev/play/p/5HopfDwANKX)] - **Compose** : 从右至左组合函数列表 fnList，返回组合后的函数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#Compose)] [[play](https://go.dev/play/p/KKfugD4PKYF)] - **Delay** : 延迟 delay 时间后调用函数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#Delay)] [[play](https://go.dev/play/p/Ivtc2ZE-Tye)] - **Debounced** : 创建一个 debounced 函数，该函数延迟调用 fn 直到自上次调用 debounced 函数后等待持续时间过去。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#Debounced)] [[play](https://go.dev/play/p/absuEGB_GN7)] - **Schedule** : 每次持续时间调用函数，直到关闭返回的 channel。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#Schedule)] [[play](https://go.dev/play/p/hbON-Xeyn5N)] - **Pipeline** : 从右至左执行函数列表。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#Pipeline)] [[play](https://go.dev/play/p/mPdUVvj6HD6)] - **AcceptIf** : AcceptIf函数会返回另一个函数，该函数的签名与apply函数相同，但同时还会包含一个布尔值来表示成功或失败。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#AcceptIf)] [[play](https://go.dev/play/p/XlXHHtzCf7d)] - **And** : 返回一个复合谓词判断函数，该判断函数表示一组谓词的逻辑and操作。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#And)] [[play](https://go.dev/play/p/dTBHJMQ0zD2)] - **Or** : 返回一个复合谓词判断函数，该判断函数表示一组谓词的逻辑or操作。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#Or)] [[play](https://go.dev/play/p/LitCIsDFNDA)] - **Negate** : 返回一个谓词函数，该谓词函数表示当前谓词的逻辑否定。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#Negate)] [[play](https://go.dev/play/p/jbI8BtgFnVE)] - **Nor** : 返回一个复合谓词判断函数，该判断函数表示一组谓词的逻辑非或nor的操作。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#Nor)] [[play](https://go.dev/play/p/2KdCoBEOq84)] - **Nand** : 返回一个复合谓词判断函数，该判断函数表示一组谓词的逻辑非与nand的操作。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#Nand)] [[play](https://go.dev/play/p/Rb-FdNGpgSO)] - **Xnor** : 返回一个复合谓词判断函数，该判断函数表示一组谓词的逻辑异或xnor的操作。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#Xnor)] [[play](https://go.dev/play/p/FJxko8SFbqc)] - **Watcher** : Watcher 用于记录代码执行时间。可以启动/停止/重置手表定时器。获取函数执行的时间。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/function.md#Watcher)] [[play](https://go.dev/play/p/l2yrOpCLd1I)]

12. maputil 包括一些操作 map 的函数。       回到目录

```go import "github.com/duke-git/lancet/v2/maputil" ``` #### 函数列表: - **MapTo** : 快速将 map 或者其他类型映射到结构体或者指定类型。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#MapTo)] [[play](https://go.dev/play/p/4K7KBEPgS5M)] - **ForEach** : 对 map 中的每对 key 和 value 执行 iteratee 函数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#ForEach)] [[play](https://go.dev/play/p/OaThj6iNVXK)] - **Filter** : 迭代 map 中的每对 key 和 value，返回 map，其中的 key 和 value 符合 predicate 函数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#Filter)] [[play](https://go.dev/play/p/fSvF3wxuNG7)] - **FilterByKeys** : 迭代 map, 返回一个新 map，其 key 都是给定的 key 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil#FilterByKeys)] [[play](https://go.dev/play/p/7ov6BJHbVqh)] - **FilterByValues** : 迭代 map, 返回一个新 map，其 value 都是给定的 value 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil#FilterByValues)] [[play](https://go.dev/play/p/P3-9MdcXegR)] - **OmitBy** : Filter 的反向操作, 迭代 map 中的每对 key 和 value, 删除符合 predicate 函数的 key, value, 返回新 map。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil#OmitBy)] [[play](https://go.dev/play/p/YJM4Hj5hNwm)] - **OmitByKeys** : FilterByKeys 的反向操作, 迭代 map, 返回一个新 map，其 key 不包括给定的 key 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil#OmitByKeys)] [[play](https://go.dev/play/p/jXGrWDBfSRp)] - **OmitByValues** : FilterByValues 的反向操作, 迭代 map, 返回一个新 map，其 value 不包括给定的 value 值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil#OmitByValues)] [[play](https://go.dev/play/p/XB7Y10uw20_U)] - **Intersect** : 多个 map 的交集操作。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#Intersect)] [[play](https://go.dev/play/p/Zld0oj3sjcC)] - **Keys** : 返回 map 中所有 key 组成的切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#Keys)] [[play](https://go.dev/play/p/xNB5bTb97Wd)] - **KeysBy** : 创建一个切片，其元素是每个 map 的 key 调用 mapper 函数的结果。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil#KeysBy)] [[play](https://go.dev/play/p/hI371iB8Up8)] - **Merge** : 合并多个 map, 相同的 key 会被之后的 key 覆盖。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#Merge)] [[play](https://go.dev/play/p/H95LENF1uB-)] - **Minus** : 返回一个 map，其中的 key 存在于 mapA，不存在于 mapB。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#Minus)] [[play](https://go.dev/play/p/3u5U9K7YZ9m)] - **Values** : 返回 map 中所有 values 组成的切片 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#Values)] [[play](https://go.dev/play/p/CBKdUc5FTW6)] - **ValuesBy** : 创建一个切片，其元素是每个 map 的 value 调用 mapper 函数的结果。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#ValuesBy)] [[play](https://go.dev/play/p/sg9-oRidh8f)] - **MapKeys** : 操作 map 的每个 key，然后转为新的 map。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#MapKeys)] [[play](https://go.dev/play/p/8scDxWeBDKd)] - **MapValues** : 操作 map 的每个 value，然后转为新的 map。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#MapValues)] [[play](https://go.dev/play/p/g92aY3fc7Iw)] - **Entries** : 将 map 转换为键/值对切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#Entries)] [[play](https://go.dev/play/p/Ltb11LNcElY)] - **FromEntries** : 基于键/值对的切片创建 map。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#FromEntries)] [[play](https://go.dev/play/p/fTdu4sCNjQO)] - **Transform** : 将 map 转换为其他类型的 map。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#Transform)] [[play](https://go.dev/play/p/P6ovfToM3zj)] - **IsDisjoint** : 验证两个 map 是否具有不同的 key。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#IsDisjoint)] [[play](https://go.dev/play/p/N9qgYg_Ho6f)] - **HasKey** : 检查 map 是否包含某个 key。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#HasKey)] [[play](https://go.dev/play/p/isZZHOsDhFc)] - **GetOrSet** : 返回给定键的值，如果不存在则设置该值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#GetOrSet)] [[play](https://go.dev/play/p/IVQwO1OkEJC)] - **MapToStruct** : 将map转成struct。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#MapToStruct)] [[play](https://go.dev/play/p/7wYyVfX38Dp)] - **ToSortedSlicesDefault** : 将map的key和value转化成两个根据key的值从小到大排序的切片，value切片中元素的位置与key对应。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#ToSortedSlicesDefault)] [[play](https://go.dev/play/p/43gEM2po-qy)] - **ToSortedSlicesWithComparator** : 将map的key和value转化成两个使用比较器函数根据key的值自定义排序规则的切片，value切片中元素的位置与key对应。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#ToSortedSlicesWithComparator)] [[play](https://go.dev/play/p/0nlPo6YLdt3)] - **NewConcurrentMap** : ConcurrentMap 协程安全的 map 结构。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#NewConcurrentMap)] [[play](https://go.dev/play/p/3PenTPETJT0)] - **ConcurrentMap_Set** : 在 map 中设置 key 和 value。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#ConcurrentMap_Set)] [[play](https://go.dev/play/p/3PenTPETJT0)] - **ConcurrentMap_Get** : 根据 key 获取 value, 如果不存在 key,返回零值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#ConcurrentMap_Get)] [[play](https://go.dev/play/p/3PenTPETJT0)] - **ConcurrentMap_GetOrSet** : 返回键的现有值（如果存在），否则，设置 key 并返回给定值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#ConcurrentMap_GetOrSet)] [[play](https://go.dev/play/p/aDcDApOK01a)] - **ConcurrentMap_Delete** : 删除 key。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#ConcurrentMap_Delete)] [[play](https://go.dev/play/p/uTIJZYhpVMS)] - **ConcurrentMap_GetAndDelete** :获取 key，然后删除。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#ConcurrentMap_GetAndDelete)] [[play](https://go.dev/play/p/ZyxeIXSZUiM)] - **ConcurrentMap_Has** : 验证是否包含 key。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#ConcurrentMap_Has)] [[play](https://go.dev/play/p/C8L4ul9TVwf)] - **ConcurrentMap_Range** : 为 map 中每个键和值顺序调用迭代器。 如果 iterator 返回 false，则停止迭代。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/maputil.md#ConcurrentMap_Range)] [[play](https://go.dev/play/p/iqcy7P8P0Pr)]

13. mathutil 包实现了一些数学计算的函数。       回到目录

```go import "github.com/duke-git/lancet/v2/mathutil" ``` #### 函数列表: - **Average** :计算平均数，可能需要对结果调用 RoundToFloat 方法四舍五入。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Average)] [[play](https://go.dev/play/p/Vv7LBwER-pz)] - **Exponent** : 指数计算（x 的 n 次方）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Exponent)] [[play](https://go.dev/play/p/uF3HGNPk8wr)] - **Fibonacci** :计算斐波那契数列的第 n 个数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Fibonacci)] [[play](https://go.dev/play/p/IscseUNMuUc)] - **Factorial** : 计算阶乘。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Factorial)] [[play](https://go.dev/play/p/tt6LdOK67Nx)] - **Max** : 返回参数中的最大数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Max)] [[play](https://go.dev/play/p/cN8DHI0rTkH)] - **MaxBy** : 使用给定的比较器函数返回切片的最大值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#MaxBy)] [[play](https://go.dev/play/p/pbe2MT-7DV2)] - **Min** : 返回参数中的最小数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Min)] [[play](https://go.dev/play/p/21BER_mlGUj)] - **MinBy** : 使用给定的比较器函数返回切片的最小值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#MinBy)] [[play](https://go.dev/play/p/N9qgYg_Ho6f)] - **Percent** : 计算百分比，可以指定保留 n 位小数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Percent)] [[play](https://go.dev/play/p/s0NdFCtwuyd)] - **RoundToFloat** : 四舍五入，保留 n 位小数，返回 float64。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#RoundToFloat)] [[play](https://go.dev/play/p/ghyb528JRJL)] - **RoundToString** : 四舍五入，保留 n 位小数，返回 string。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#RoundToString)] [[play](https://go.dev/play/p/kZwpBRAcllO)] - **TruncRound** : 截短 n 位小数（不进行四舍五入）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#TruncRound)] [[play](https://go.dev/play/p/aumarSHIGzP)] - **CeilToFloat** : 向上舍入（进一法），保留n位小数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#CeilToFloat)] [[play](https://go.dev/play/p/8hOeSADZPCo)] - **CeilToString** : 向上舍入（进一法），保留n位小数，返回字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#CeilToString)] [[play](https://go.dev/play/p/wy5bYEyUKKG)] - **FloorToFloat** : 向下舍入（去尾法），保留n位小数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#FloorToFloat)] [[play](https://go.dev/play/p/vbCBrQHZEED)] - **FloorToString** : 向下舍入（去尾法），保留n位小数，返回字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#FloorToString)] [[play](https://go.dev/play/p/Qk9KPd2IdDb)] - **Range** : 根据指定的起始值和数量，创建一个数字切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Range)] [[play](https://go.dev/play/p/9ke2opxa8ZP)] - **RangeWithStep** : 根据指定的起始值，结束值，步长，创建一个数字切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#RangeWithStep)] [[play](https://go.dev/play/p/akLWz0EqOSM)] - **AngleToRadian** : 将角度值转为弧度值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#AngleToRadian)] [[play](https://go.dev/play/p/CIvlICqrHql)] - **RadianToAngle** : 将弧度值转为角度值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#RadianToAngle)] [[play](https://go.dev/play/p/dQtmOTUOMgi)] - **PointDistance** : 计算两个坐标点的距离。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#PointDistance)] [[play](https://go.dev/play/p/RrG4JIaziM8)] - **IsPrime** : 判断质数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#IsPrime)] [[play](https://go.dev/play/p/Rdd8UTHZJ7u)] - **GCD** : 求最大公约数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#GCD)] [[play](https://go.dev/play/p/CiEceLSoAKB)] - **LCM** : 求最小公倍数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#LCM)] [[play](https://go.dev/play/p/EjcZxfY7G_g)] - **Cos** : 计算弧度的余弦值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Cos)] [[play](https://go.dev/play/p/Sm89LoIfvFq)] - **Sin** : 计算弧度的正弦值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Sin)] [[play](https://go.dev/play/p/TWMQlMywDsP)] - **Log** : 计算以 base 为底 n 的对数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Log)] [[play](https://go.dev/play/p/_d4bi8oyhat)] - **Sum** : 求传入参数之和。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Sum)] [[play](https://go.dev/play/p/1To2ImAMJA7)] - **Abs** : 求绝对值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Sum)] [[play](https://go.dev/play/p/fsyBh1Os-1d)] - **Div** : 除法运算。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/mathutil.md#Div)] [[play](https://go.dev/play/p/WLxDdGXXYat)]

14. netutil 网络包支持获取 ip 地址，发送 http 请求。       回到目录

```go import "github.com/duke-git/lancet/v2/netutil" ``` #### 函数列表: - **ConvertMapToQueryString** : 将 map 转换成 http 查询字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#ConvertMapToQueryString)] [[play](https://go.dev/play/p/jnNt_qoSnRi)] - **EncodeUrl** : 编码 url query string 的值(?a=1&b=[2] -> ?a=1&b=%5B2%5D)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#EncodeUrl)] [[play](https://go.dev/play/p/bsZ6BRC4uKI)] - **GetInternalIp** : 获取内部 ipv4。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#GetInternalIp)] [[play](https://go.dev/play/p/5mbu-gFp7ei)] - **GetIps** : 获取系统 ipv4 地址列表。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#GetIps)] [[play](https://go.dev/play/p/NUFfcEmukx1)] - **GetMacAddrs** : 获取系统 mac 地址列。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#GetMacAddrs)] [[play](https://go.dev/play/p/Rq9UUBS_Xp1)] - **GetPublicIpInfo** : 获取[公网 ip 信息](http://ip-api.com/json/). [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#GetPublicIpInfo)] [[play](https://go.dev/play/p/YDxIfozsRHR)] - **GetRequestPublicIp** : 获取 http 请求 ip。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#GetRequestPublicIp)] [[play](https://go.dev/play/p/kxU-YDc_eBo)] - **IsPublicIP** : 判断 ip 是否是公共 ip。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#IsPublicIP)] [[play](https://go.dev/play/p/nmktSQpJZnn)] - **IsInternalIP** : 判断 ip 是否是局域网 ip。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#IsInternalIP)] [[play](https://go.dev/play/p/sYGhXbgO4Cb)] - **HttpRequest** : 用于抽象 HTTP 请求实体的结构。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#HttpRequest)] [[play](https://go.dev/play/p/jUSgynekH7G)] - **HttpClient** : 用于发送 HTTP 请求。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#HttpClient)] [[play](https://go.dev/play/p/jUSgynekH7G)] - **SendRequest** : 发送 http 请求。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#SendRequest)] [[play](https://go.dev/play/p/jUSgynekH7G)] - **DecodeResponse** : 解析 http 响应体到目标结构体。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#DecodeResponse)] [[play](https://go.dev/play/p/jUSgynekH7G)] - **StructToUrlValues** : 将结构体转为 url values, 仅转化结构体导出字段并且包含`json` tag。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#StructToUrlValues)] [[play](https://go.dev/play/p/pFqMkM40w9z)] - **HttpGetdeprecated** : 发送 http get 请求（已弃用：SendRequest 代替）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#HttpGet)] - **HttpDeletedeprecated** : 发送 http delete 请求（已弃用：SendRequest 代替）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#HttpDelete)] - **HttpPostdeprecated** : 发送 http post 请求（已弃用：SendRequest 代替）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#HttpPost)] - **HttpPutdeprecated** : 发送 http put 请求（已弃用：SendRequest 代替）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#HttpPut)] - **HttpPatchdeprecated** : 发送 http patch 请求（已弃用：SendRequest 代替）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#HttpPatch)] - **ParseHttpResponse** : 解析 http 响应体到目标结构体。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#ParseHttpResponse)] - **DownloadFile** : 从指定的 server 地址下载文件。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#DownloadFile)] - **UploadFile** : 将文件上传指定的 server 地址。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#UploadFile)] - **IsPingConnected** : 检查能否 ping 通主机。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#IsPingConnected)] [[play](https://go.dev/play/p/q8OzTijsA87)] - **IsTelnetConnected** : 检查能否 telnet 到主机。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/netutil.md#IsTelnetConnected)] [[play](https://go.dev/play/p/yiLCGtQv_ZG)]

15. pointer 包支持一些指针类型的操作。       回到目录

```go import "github.com/duke-git/lancet/v2/pointer" ``` #### 函数列表: - **ExtractPointer** : 返回传入 interface 的底层值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/pointer.md#ExtractPointer)] [[play](https://go.dev/play/p/D7HFjeWU2ZP)] - **Of** : 返回传入参数的指针值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/pointer.md#Of)] [[play](https://go.dev/play/p/HFd70x4DrMj)] - **Unwrap** : 返回传入指针指向的值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/pointer.md#Unwrap)] [[play](https://go.dev/play/p/cgeu3g7cjWb) - **UnwarpOr** : 返回指针的值，如果指针为零值，则返回 fallback。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/pointer.md#UnwrapOr)] [[play](https://go.dev/play/p/mmNaLC38W8C)] - **UnwarpOrDefault** : 返回指针的值，如果指针为零值，则返回相应零值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/pointer.md#UnwrapOrDefault)] [[play](https://go.dev/play/p/ZnGIHf8_o4E)]

16. random 随机数生成器包，可以生成随机[]bytes, int, string。       回到目录

```go import "github.com/duke-git/lancet/v2/random" ``` #### 函数列表: - **RandBytes** : 生成随机字节切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandBytes)] [[play](https://go.dev/play/p/EkiLESeXf8d)] - **RandInt** : 生成随机 int, 范围[min, max)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandInt)] [[play](https://go.dev/play/p/pXyyAAI5YxD)] - **RandString** : 生成给定长度的随机字符串，只包含字母(a-zA-Z)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandString)] [[play](https://go.dev/play/p/W2xvRUXA7Mi)] - **RandUpper** : 生成给定长度的随机大写字母字符串(A-Z)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandUpper)] [[play](https://go.dev/play/p/29QfOh0DVuh)] - **RandLower** : 生成给定长度的随机小写字母字符串(a-z)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandLower)] [[play](https://go.dev/play/p/XJtZ471cmtI)] - **RandNumeral** : 生成给定长度的随机数字字符串(0-9)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandNumeral)] [[play](https://go.dev/play/p/g4JWVpHsJcf)] - **RandNumeralOrLetter** : 生成给定长度的随机字符串（数字+字母)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandNumeralOrLetter)] [[play](https://go.dev/play/p/19CEQvpx2jD)] - **UUIdV4** : 生成 UUID v4 字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#UUIdV4)] [[play](https://go.dev/play/p/_Z9SFmr28ft)] - **RandUniqueIntSlice** : 生成一个不重复的随机int切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandUniqueIntSlice)] [[play](https://go.dev/play/p/uBkRSOz73Ec)] - **RandSymbolChar** : 生成给定长度的随机符号字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandSymbolChar)] [[play](https://go.dev/play/p/Im6ZJxAykOm)] - **RandFloat** : 生成随机float64数字，可以指定范围和精度。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandFloat)] [[play](https://go.dev/play/p/zbD_tuobJtr)] - **RandFloats** : 生成随机float64数字切片，可以指定长度，范围和精度. [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandFloats)] [[play](https://go.dev/play/p/uBkRSOz73Ec)]

17. retry 重试执行函数直到函数运行成功或被 context cancel。       回到目录

```go import "github.com/duke-git/lancet/v2/retry" ``` #### 函数列表: - **Context** : 设置重试 context 参数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/retry.md#Context)] [[play](https://go.dev/play/p/xnAOOXv9GkS)] - **Retry** : 重试执行函数 retryFunc，直到函数运行成功，或被 context 取消。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/retry.md#Retry)] [[play](https://go.dev/play/p/nk2XRmagfVF)] - **RetryFunc** : 重试执行的函数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/retry.md#RetryFunc)] [[play](https://go.dev/play/p/nk2XRmagfVF)] - **RetryDuration** : 设置重试间隔时间，默认 3 秒。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/retry.md#RetryDuration)] [[play](https://go.dev/play/p/nk2XRmagfVF)] - **RetryTimes** : 设置重试次数，默认 5。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/retry.md#RetryTimes)] [[play](https://go.dev/play/p/ssfVeU2SwLO)] - **BackoffStrategy** : 定义计算退避间隔的方法的接口。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/retry.md#BackoffStrategy)] - **RetryWithCustomBackoff** : 设置自定义退避策略。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/retry.md#RetryWithCustomBackoff)] [[play](https://go.dev/play/p/jIm_o2vb5Y4)] - **RetryWithLinearBackoff** : 设置线性策略退避。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/retry.md#RetryWithLinearBackoff)] [[play](https://go.dev/play/p/PDet2ZQZwcB)] - **RetryWithExponentialWithJitterBackoff** : 设置指数策略退避。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/retry.md#RetryWithExponentialWithJitterBackoff)] [[play](https://go.dev/play/p/xp1avQmn16X)]

18. slice 包含操作切片的方法集合。        回到目录

```go import "github.com/duke-git/lancet/v2/slice" ``` #### 函数列表: - **AppendIfAbsent** : 当前切片中不包含值时，将该值追加到切片中。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#AppendIfAbsent)] [[play](https://go.dev/play/p/GNdv7Jg2Taj)] - **Contain** : 判断 slice 是否包含 value。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Contain)] [[play](https://go.dev/play/p/_454yEHcNjf)] - **ContainBy** : 根据 predicate 函数判断切片是否包含某个值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#ContainBy)] [[play](https://go.dev/play/p/49tkHfX4GNc)] - **ContainSubSlice** : 判断 slice 是否包含 subslice。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#ContainSubSlice)] [[play](https://go.dev/play/p/bcuQ3UT6Sev)] - **Chunk** : 按照 size 参数均分 slice。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Chunk)] [[play](https://go.dev/play/p/b4Pou5j2L_C)] - **Compact** : 去除 slice 中的假值（false values are false, nil, 0, ""）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Compact)] [[play](https://go.dev/play/p/pO5AnxEr3TK)] - **Concat** : 合并多个 slices 到一个 slice 中。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Concat)] [[play](https://go.dev/play/p/gPt-q7zr5mk)] - **Count** : 返回切片中指定元素的个数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Count)] [[play](https://go.dev/play/p/Mj4oiEnQvRJ)] - **CountBy** : 遍历切片，对每个元素执行函数 predicate. 返回符合函数返回值为 true 的元素的个数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#CountBy)] [[play](https://go.dev/play/p/tHOccTMDZCC)] - **Difference** : 创建一个切片，其元素不包含在另一个给定切片中。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Difference)] [[play](https://go.dev/play/p/VXvadzLzhDa)] - **DifferenceBy** : 将两个 slice 中的每个元素调用 iteratee 函数，并比较它们的返回值，如果不相等返回在 slice 中对应的值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#DifferenceBy)] [[play](https://go.dev/play/p/DiivgwM5OnC)] - **DifferenceWith** : 接受比较器函数，该比较器被调用以将切片的元素与值进行比较。 结果值的顺序和引用由第一个切片确定。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#DifferenceWith)] [[play](https://go.dev/play/p/v2U2deugKuV)] - **DeleteAt** : 删除切片中指定索引到的元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#DeleteAt)] [[play](https://go.dev/play/p/800B1dPBYyd)] - **DeleteRange** : 删除切片中指定开始索引到结束索引的元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#DeleteRange)] [[play](https://go.dev/play/p/945HwiNrnle)] - **Drop** : 从切片头部删除 n 个元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Drop)] [[play](https://go.dev/play/p/jnPO2yQsT8H)] - **DropRight** : 从切片尾部删除 n 个元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#DropRight)] [[play](https://go.dev/play/p/8bcXvywZezG)] - **DropWhile** : 从切片的头部删除 n 个元素，这个 n 个元素满足 predicate 函数返回 true。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#DropWhile)] [[play](https://go.dev/play/p/4rt252UV_qs)] - **DropRightWhile** : 从切片的尾部删除 n 个元素，这个 n 个元素满足 predicate 函数返回 true。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#DropRightWhile)] [[play](https://go.dev/play/p/6wyK3zMY56e)] - **Equal** : 检查两个切片是否相等，相等条件：切片长度相同，元素顺序和值都相同。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Equal)] [[play](https://go.dev/play/p/WcRQJ37ifPa)] - **EqualWith** : 检查两个切片是否相等，相等条件：对两个切片的元素调用比较函数 comparator，返回 true。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#EqualWith)] [[play](https://go.dev/play/p/b9iygtgsHI1)] - **Every** : 如果切片中的所有值都通过谓词函数，则返回 true。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Every)] [[play](https://go.dev/play/p/R8U6Sl-j8cD)] - **Filter** : 返回切片中通过 predicate 函数真值测试的所有元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Filter)] [[play](https://go.dev/play/p/SdPna-7qK4T)] - **FilterMap** : 返回一个将 filter 和 map 操作应用于给定切片的切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#FilterMap)] [[play](https://go.dev/play/p/J94SZ_9MiIe)] - **Finddeprecated** : 遍历切片的元素，返回第一个通过 predicate 函数真值测试的元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Find)] [[play](https://go.dev/play/p/CBKeBoHVLgq)] - **FindBy** : 遍历切片的元素，返回第一个通过 predicate 函数真值测试的元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#FindBy)] [[play](https://go.dev/play/p/n1lysBYl-GB)] - **FindLastdeprecated** : 从头到尾遍历 slice 的元素，返回最后一个通过 predicate 函数真值测试的元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#FindLast)] [[play](https://go.dev/play/p/FFDPV_j7URd)] - **FindLastBy** : 从遍历 slice 的元素，返回最后一个通过 predicate 函数真值测试的元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#FindLastBy)] [[play](https://go.dev/play/p/8iqomzyCl_s)] - **Flatten** : 将多维切片展平一层。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Flatten)] [[play](https://go.dev/play/p/hYa3cBEevtm)] - **FlattenDeep** : 将多维切片递归展平到一层。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#FlattenDeep)] [[play](https://go.dev/play/p/yjYNHPyCFaF)] - **FlatMap** : 将切片转换为其它类型切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#FlatMap)] [[play](https://go.dev/play/p/_QARWlWs1N_F)] - **ForEach** : 遍历切片的元素并为每个元素调用 iteratee 函数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#ForEach)] [[play](https://go.dev/play/p/DrPaa4YsHRF)] - **ForEachWithBreak** : 遍历切片的元素并为每个元素调用 iteratee 函数，当 iteratee 函数返回 false 时，终止遍历。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#ForEachWithBreak)] [[play](https://go.dev/play/p/qScs39f3D9W)] - **GroupBy** : 迭代切片的元素，每个元素将按条件分组，返回两个切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#GroupBy)] [[play](https://go.dev/play/p/QVkPxzPR0iA)] - **GroupWith** : 创建一个 map，key 是 iteratee 遍历 slice 中的每个元素返回的结果。值是切片元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#GroupWith)] [[play](https://go.dev/play/p/ApCvMNTLO8a)] - **IntSlicedeprecated** : 将接口切片转换为 int 切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#IntSlice)] [[play](https://go.dev/play/p/FdQXF0Vvqs-)] - **InterfaceSlicedeprecated** : 将值转换为 interface 切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#InterfaceSlice)] [[play](https://go.dev/play/p/FdQXF0Vvqs-)] - **Intersection** : 返回多个切片的交集。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Intersection)] [[play](https://go.dev/play/p/anJXfB5wq_t)] - **InsertAt** : 将元素插入到索引处的切片中。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#InsertAt)] [[play](https://go.dev/play/p/hMLNxPEGJVE)] - **IndexOf** : 返回在切片中找到值的第一个匹配项的索引，如果找不到值，则返回-1。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#IndexOf)] [[play](https://go.dev/play/p/MRN1f0FpABb)] - **LastIndexOf** : 返回在切片中找到最后一个值的索引，如果找不到该值，则返回-1。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#LastIndexOf)] [[play](https://go.dev/play/p/DokM4cf1IKH)] - **Map** : 对 slice 中的每个元素执行 map 函数以创建一个新切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Map)] [[play](https://go.dev/play/p/biaTefqPquw)] - **Merge** : 合并多个切片（不会消除重复元素)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Merge)] [[play](https://go.dev/play/p/lbjFp784r9N)] - **Reverse** : 反转切片中的元素顺序。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Reverse)] [[play](https://go.dev/play/p/8uI8f1lwNrQ)] - **Reducedeprecated** : 将切片中的元素依次运行 iteratee 函数，返回运行结果。(废弃：建议使用 ReduceBy) [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Reduce)] [[play](https://go.dev/play/p/_RfXJJWIsIm)] - **ReduceBy** : 对切片元素执行 reduce 操作。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#ReduceBy)] [[play](https://go.dev/play/p/YKDpLi7gtee)] - **ReduceRight** : 类似 ReduceBy 操作，迭代切片元素顺序从右至左。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#ReduceRight)] [[play](https://go.dev/play/p/qT9dZC03A1K)] - **Replace** : 返回切片的副本，其中前 n 个不重叠的 old 替换为 new。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Replace)] [[play](https://go.dev/play/p/P5mZp7IhOFo)] - **ReplaceAll** : 返回切片的副本，将其中 old 全部替换为 new。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#ReplaceAll)] [[play](https://go.dev/play/p/CzqXMsuYUrx)] - **Repeat** : 创建一个切片，包含 n 个传入的 item。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Repeat)] [[play](https://go.dev/play/p/1CbOmtgILUU)] - **Shuffle** : 随机打乱切片中的元素顺序。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Shuffle)] [[play](https://go.dev/play/p/YHvhnWGU3Ge)] - **IsAscending** : 检查切片元素是否按升序排列。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#IsAscending)] [[play](https://go.dev/play/p/9CtsFjet4SH)] - **IsDescending** : 检查切片元素是否按降序排列。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#IsDescending)] [[play](https://go.dev/play/p/U_LljFXma14)] - **IsSorted** : 检查切片元素是否是有序的（升序或降序）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#IsSorted)] [[play](https://go.dev/play/p/nCE8wPLwSA-)] - **IsSortedByKey** : 通过 iteratee 函数，检查切片元素是否是有序的。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#IsSortedByKey)] [[play](https://go.dev/play/p/tUoGB7DOHI4)] - **Sort** : 对任何有序类型（数字或字符串）的切片进行排序，使用快速排序算法。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Sort)] [[play](https://go.dev/play/p/V9AVjzf_4Fk)] - **SortBy** : 按照 less 函数确定的升序规则对切片进行排序。排序不保证稳定性。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#SortBy)] [[play](https://go.dev/play/p/DAhLQSZEumm)] - **SortByFielddeprecated** : 按字段对结构切片进行排序。slice 元素应为 struct，字段类型应为 int、uint、string 或 bool。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#SortByField)] [[play](https://go.dev/play/p/fU1prOBP9p1)] - **Some** : 如果列表中的任何值通过谓词函数，则返回 true。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Some)] [[play](https://go.dev/play/p/4pO9Xf9NDGS)] - **StringSlicedeprecated** : 将接口切片转换为字符串切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#StringSlice)] [[play](https://go.dev/play/p/W0TZDWCPFcI)] - **SymmetricDifference** : 返回一个切片，其中的元素存在于参数切片中，但不同时存储在于参数切片中（交集取反）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#h42nJX5xMln)] [[play](https://go.dev/play/p/1CbOmtgILUU)] - **ToSlice** : 将可变参数转为切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#ToSlice)] [[play](https://go.dev/play/p/YzbzVq5kscN)] - **ToSlicePointer** : 将可变参数转为指针切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#ToSlicePointer)] [[play](https://go.dev/play/p/gx4tr6_VXSF)] - **Unique** : 删除切片中的重复元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Unique)] [[play](https://go.dev/play/p/AXw0R3ZTE6a)] - **UniqueBy** : 根据迭代函数返回的值，从输入切片中移除重复元素。此函数保持元素的顺序。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#UniqueBy)] [[play](https://go.dev/play/p/UR323iZLDpv)] - **UniqueByComparator** : 使用提供的比较器函数从输入切片中移除重复元素。此函数保持元素的顺序。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#UniqueByComparator)] - **UniqueByField** : 根据struct字段对struct切片去重复。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#UniqueByField)] [[play](https://go.dev/play/p/6cifcZSPIGu)] - **UniqueByParallel** : 并发的从输入切片中移除重复元素，结果保持元素的顺序。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#UniqueByParallel)] - **Union** : 合并多个切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Union)] [[play](https://go.dev/play/p/hfXV1iRIZOf)] - **UnionBy** : 对切片的每个元素调用函数后，合并多个切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#UnionBy)] [[play](https://go.dev/play/p/HGKHfxKQsFi)] - **UpdateAt** : 更新索引处的切片元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#UpdateAt)] [[play](https://go.dev/play/p/f3mh2KloWVm)] - **Without** : 创建一个不包括所有给定值的切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Without)] [[play](https://go.dev/play/p/bwhEXEypThg)] [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#KeyBy)] [[play](https://go.dev/play/p/uXod2LWD1Kg)] - **Join** : 用指定的分隔符链接切片元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Join)] [[play](https://go.dev/play/p/huKzqwNDD7V)] - **Partition** : 根据给定的predicate判断函数分组切片元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Partition)] [[play](https://go.dev/play/p/lkQ3Ri2NQhV)] - **Random** : 随机返回切片中元素以及下标, 当切片长度为0时返回下标-1。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Random)] [[play](https://go.dev/play/p/UzpGQptWppw)] - **SetToDefaultIf** : 根据给定给定的predicate判定函数来修改切片中的元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#SetToDefaultIf)] [[play](https://go.dev/play/p/9AXGlPRC0-A)] - **Break** : 根据判断函数将切片分成两部分。它开始附加到与函数匹配的第一个元素之后的第二个切片。第一个匹配之后的所有元素都包含在第二个切片中，无论它们是否与函数匹配。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Break)] - **RightPadding** : 在切片的右部添加元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#RightPadding)] [[play](https://go.dev/play/p/0_2rlLEMBXL)] - **LeftPadding** : 在切片的左部添加元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#LeftPadding)] [[play](https://go.dev/play/p/jlQVoelLl2k)]

19. stream 流，该包仅验证简单的 stream 实现，功能有限。       回到目录

```go import "github.com/duke-git/lancet/v2/stream" ``` #### 函数列表: - **Of** : 创建元素为指定值的 stream。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Of)] [[play](https://go.dev/play/p/jI6_iZZuVFE)] - **FromSlice** : 从切片创建 stream。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#FromSlice)] [[play](https://go.dev/play/p/wywTO0XZtI4)] - **FromChannel** : 从通道创建 stream。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#FromChannel)] [[play](https://go.dev/play/p/9TZYugGMhXZ)] - **FromRange** : 指定一个数字范围创建 stream, 范围两端点值都包括在内。. [start, end] [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#FromRange)] [[play](https://go.dev/play/p/9Ex1-zcg-B-)] - **Generate** : 创建一个 stream，其中每个元素都由提供的生成器函数生成。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Generate)] [[play](https://go.dev/play/p/rkOWL1yA3j9)] - **Concat** : 创建一个延迟连接 stream，其元素是第一个 stream 的所有元素，后跟第二个 stream 的全部元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Concat)] [[play](https://go.dev/play/p/HM4OlYk_OUC)] - **Distinct** : 创建并返回一个 stream，用于删除重复的项。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Distinct)] [[play](https://go.dev/play/p/eGkOSrm64cB)] - **Filter** : 返回一个通过判定函数的 stream。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Filter)] [[play](https://go.dev/play/p/MFlSANo-buc)] - **Map** : 返回一个 stream，该 stream 由将给定函数应用于源 stream 元素的元素组成。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Map)] [[play](https://go.dev/play/p/OtNQUImdYko)] - **Peek** : 返回一个由源 stream 的元素组成的 stream，并在从生成的 stream 中消耗元素时对每个元素执行所提供的操作。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Peek)] [[play](https://go.dev/play/p/u1VNzHs6cb2)] - **Skip** : 在丢弃 stream 的前 n 个元素后，返回由源 stream 的其余元素组成的 stream。如果此 stream 包含的元素少于 n 个，则将返回一个空 stream。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Skip)] [[play](https://go.dev/play/p/fNdHbqjahum)] - **Limit** : 返回由源 stream 的元素组成的 stream，该 stream 被截断为长度不超过 maxSize。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Limit)] [[play](https://go.dev/play/p/qsO4aniDcGf)] - **Reverse** : 返回元素与源 stream 的顺序相反的 stream。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Reverse)] [[play](https://go.dev/play/p/A8_zkJnLHm4)] - **Range** : 返回一个 stream，该 stream 的元素在从源 stream 的开始（包含）到结束（排除）的范围内。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Range)] [[play](https://go.dev/play/p/indZY5V2f4j)] - **Sorted** : 返回一个 stream，该 stream 由源 stream 的元素组成，并根据提供的 less 函数进行排序。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Sorted)] [[play](https://go.dev/play/p/XXtng5uonFj)] - **ForEach** : 对 stream 的每个元素执行一个操作。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#ForEach)] [[play](https://go.dev/play/p/Dsm0fPqcidk)] - **Reduce** : 使用关联累加函数对 stream 的元素执行 reduce 操作，并 reduce 操作结果（如果有）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Reduce)] [[play](https://go.dev/play/p/6uzZjq_DJLU)] - **FindFirst** : 返回此 stream 的第一个元素，如果 stream 为空，则返回零值和 false。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#FindFirst)] [[play](https://go.dev/play/p/9xEf0-6C1e3)] - **FindLast** : 返回此 stream 的最后一个元素，如果 stream 为空，则返回零值和 false。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#FindLast)] [[play](https://go.dev/play/p/WZD2rDAW-2h)] - **Max** : 根据提供的 less 函数返回 stream 的最大元素。less 函数: a > b [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Max)] [[play](https://go.dev/play/p/fm-1KOPtGzn)] - **Min** : 根据提供的 less 函数返回 stream 的最小元素。less 函数: a < b [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Min)] [[play](https://go.dev/play/p/vZfIDgGNRe_0)] - **AllMatch** : 判断 stream 的所有元素是否全部匹配指定判定函数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#AllMatch)] [[play](https://go.dev/play/p/V5TBpVRs-Cx)] - **AnyMatch** : 判断 stream 是否包含匹配指定判定函数的元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#AnyMatch)] [[play](https://go.dev/play/p/PTCnWn4OxSn)] - **NoneMatch** : 判断 stream 的元素是否全部不匹配指定的判定函数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#NoneMatch)] [[play](https://go.dev/play/p/iWS64pL1oo3)] - **Count** : 返回 stream 中元素的数量。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#Count)] [[play](https://go.dev/play/p/r3koY6y_Xo-)] - **ToSlice** : 返回 stream 中的元素切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/stream.md#ToSlice)] [[play](https://go.dev/play/p/jI6_iZZuVFE)]

20. structs 提供操作 struct, tag, field 的相关函数。       回到目录

```go import "github.com/duke-git/lancet/v2/structs" ``` #### 函数列表: - **New** : `Struct`结构体的构造函数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#New)] - **ToMap** : 将一个合法的 struct 对象转换为 map[string]any。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#ToMap)] - **Fields** : 获取一个 struct 对象的属性列表。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#Fields)] - **Field** : 根据属性名获取一个 struct 对象的属性。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#Fields)] - **IsStruct** : 判断是否为一个合法的 struct 对象。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#IsStruct)] - **Tag** : 获取`Field`的`Tag`，默认的 tag key 是 json。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#Tag)] - **Name** : 获取属性名。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#Name)] - **Value** : 获取`Field`属性的值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#Value)] - **Kind** : 获取属性 Kind。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#Kind)] - **IsEmbedded** : 判断属性是否为嵌入。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#IsEmbedded)] - **IsExported** : 判断属性是否导出。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#IsExported)] - **IsZero** : 判断属性是否为零值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#IsZero)] - **IsSlice** : 判断属性是否是切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#IsSlice)] - **IsTargetType** : 判断属性是否是目标类型。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/struct.md#IsTargetType)]

21. strutil 包含字符串处理的相关函数。       回到目录

```go import "github.com/duke-git/lancet/v2/strutil" ``` #### 函数列表: - **After** : 返回源字符串中指定字符串首次出现时的位置之后的子字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#After)] [[play](https://go.dev/play/p/RbCOQqCDA7m)] - **AfterLast** : 返回源字符串中指定字符串最后一次出现时的位置之后的子字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#AfterLast)] [[play](https://go.dev/play/p/1TegARrb8Yn)] - **Before** : 返回源字符串中指定字符串第一次出现时的位置之前的子字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#Before)] [[play](https://go.dev/play/p/JAWTZDS4F5w)] - **BeforeLast** : 返回源字符串中指定字符串最后一次出现时的位置之前的子字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#BeforeLast)] [[play](https://go.dev/play/p/pJfXXAoG_Te)] - **CamelCase** : 将字符串转换为 CamelCase 驼峰式字符串, 非字母和数字会被忽略。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#CamelCase)] [[play](https://go.dev/play/p/9eXP3tn2tUy)] - **Capitalize** : 将字符串的第一个字符转换为大写。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#Capitalize)] [[play](https://go.dev/play/p/2OAjgbmAqHZ)] - **ContainsAll** : 判断字符串是否包括全部给定的子字符串切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#ContainsAll)] [[play](https://go.dev/play/p/KECtK2Os4zq)] - **ContainsAny** : 判断字符串是否包括给定的子字符串切片中任意一个子字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#ContainsAny)] [[play](https://go.dev/play/p/dZGSSMB3LXE)] - **IsString** : 判断传入参数的数据类型是否为字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#IsString)] [[play](https://go.dev/play/p/IOgq7oF9ERm)] - **KebabCase** : 将字符串转换为 kebab-case 形式字符串, 非字母和数字会被忽略。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#KebabCase)] [[play](https://go.dev/play/p/dcZM9Oahw-Y)] - **UpperKebabCase** : 将字符串转换为大写 KEBAB-CASE 形式字符串, 非字母和数字会被忽略。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#UpperKebabCase)] [[play](https://go.dev/play/p/zDyKNneyQXk)] - **LowerFirst** : 将字符串的第一个字符转换为小写形式。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#LowerFirst)] [[play](https://go.dev/play/p/CbzAyZmtJwL)] - **UpperFirst** : 将字符串的第一个字符转换为大写形式。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#UpperFirst)] [[play](https://go.dev/play/p/sBbBxRbs8MM)] - **Pad** : 如果字符串长度短于 size，则在左右两侧填充字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#Pad)] [[play](https://go.dev/play/p/NzImQq-VF8q)] - **PadEnd** : 如果字符串短于限制大小，则在右侧用给定字符填充字符串。 如果填充字符超出大小，它们将被截断。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#PadEnd)] [[play](https://go.dev/play/p/9xP8rN0vz--)] - **PadStart** : 如果字符串短于限制大小，则在左侧用给定字符填充字符串。 如果填充字符超出大小，它们将被截断。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#PadStart)] [[play](https://go.dev/play/p/xpTfzArDfvT)] - **Reverse** : 返回字符顺序与给定字符串相反的字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#Reverse)] [[play](https://go.dev/play/p/adfwalJiecD)] - **SnakeCase** : 将字符串转换为 snake_case 形式, 非字母和数字会被忽略。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#SnakeCase)] [[play](https://go.dev/play/p/tgzQG11qBuN)] - **UpperSnakeCase** : 将字符串转换为大写 SNAKE_CASE 形式, 非字母和数字会被忽略。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#UpperSnakeCase)] [[play](https://go.dev/play/p/4COPHpnLx38)] - **SplitEx** : 拆分给定的字符串可以控制结果切片是否包含空字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#SplitEx)] [[play](https://go.dev/play/p/Us-ySSbWh-3)] - **Substring** : 根据指定的位置和长度截取子字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#Substring)] [[play](https://go.dev/play/p/q3sM6ehnPDp)] - **Wrap** : 用给定字符包裹传入的字符串 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#Wrap)] [[play](https://go.dev/play/p/KoZOlZDDt9y)] - **Unwrap** : 从另一个字符串中解开一个给定的字符串。 将更改源字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#Unwrap)] [[play](https://go.dev/play/p/Ec2q4BzCpG-)] - **SplitWords** : 将字符串拆分为单词，只支持字母字符单词。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#SplitWords)] [[play](https://go.dev/play/p/KLiX4WiysMM)] - **WordCount** : 返回有意义单词的数量，只支持字母字符单词。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#WordCount)] [[play](https://go.dev/play/p/bj7_odx3vRf)] - **RemoveNonPrintable** : 删除字符串中不可打印的字符。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#RemoveNonPrintable)] [[play](https://go.dev/play/p/og47F5x_jTZ)] - **StringToBytes** : 在不分配内存的情况下将字符串转换为字节片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#StringToBytes)] [[play](https://go.dev/play/p/7OyFBrf9AxA)] - **BytesToString** : 在不分配内存的情况下将字节切片转换为字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#BytesToString)] [[play](https://go.dev/play/p/6c68HRvJecH)] - **IsBlank** : 检查字符串是否为空格或空。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#IsBlank)] [[play](https://go.dev/play/p/6zXRH_c0Qd3)] - **IsNotBlank** : 检查字符串是否不为空。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#IsNotBlank)] [[play](https://go.dev/play/p/e_oJW0RAquA)] - **HasPrefixAny** : 检查字符串是否以指定字符串数组中的任何一个开头。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#HasPrefixAny)] [[play](https://go.dev/play/p/8UUTl2C5slo)] - **HasSuffixAny** : 检查字符串是否以指定字符串数组中的任何一个结尾。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#HasSuffixAny)] [[play](https://go.dev/play/p/sKWpCQdOVkx)] - **IndexOffset** : 将字符串偏移 idxFrom 后，返回字符串中第一个 substr 实例的索引。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#IndexOffset)] [[play](https://go.dev/play/p/qZo4lV2fomB)] - **ReplaceWithMap** : 返回 string 的副本，以无序的方式被 map 替换，区分大小写。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#ReplaceWithMap)] [[play](https://go.dev/play/p/h3t7CNj2Vvu)] - **Trim** : 从字符串的开头和结尾去除空格（或其他字符）。 可选参数 characterMask 指定额外的剥离字符。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#Trim)] [[play](https://go.dev/play/p/Y0ilP0NRV3j)] - **SplitAndTrim** : 将字符串 str 按字符串 delimiter 拆分为一个切片，并对该数组的每个元素调用 Trim。忽略 Trim 后为空的元素。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#SplitAndTrim)] [[play](https://go.dev/play/p/ZNL6o4SkYQ7)] - **HideString** : 隐藏源字符串中的一些字符。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#HideString)] [[play](https://go.dev/play/p/pzbaIVCTreZ)] - **RemoveWhiteSpace** : 删除字符串中的空格。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#RemoveWhiteSpace)] [[play](https://go.dev/play/p/HzLC9vsTwkf)] - **SubInBetween** : 获取字符串中指定的起始字符串start和终止字符串end直接的子字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#SubInBetween)] [[play](https://go.dev/play/p/EDbaRvjeNsv)] - **HammingDistance** : 计算两个字符串之间的汉明距离。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/strutil.md#HammingDistance)] [[play](https://go.dev/play/p/glNdQEA9HUi)]

22. system 包含 os, runtime, shell command 的相关函数。       回到目录

```go import "github.com/duke-git/lancet/v2/system" ``` #### 函数列表: - **IsWindows** : 检查当前操作系统是否是 windows。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/system#IsWindows)] [[play](https://go.dev/play/p/XzJULbzmf9m)] - **IsLinux** : 检查当前操作系统是否是 linux。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/system#IsLinux)] [[play](https://go.dev/play/p/zIflQgZNuxD)] - **IsMac** : 检查当前操作系统是否是 macos。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/system#IsMac)] [[play](https://go.dev/play/p/Mg4Hjtyq7Zc)] - **GetOsEnv** : 根据 key 获取对应的环境变量值 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/system#GetOsEnv)] [[play](https://go.dev/play/p/D88OYVCyjO-)] - **SetOsEnv** : 设置环境变量。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/system#SetOsEnv)] [[play](https://go.dev/play/p/D88OYVCyjO-)] - **RemoveOsEnv** : 删除环境变量。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/system#RemoveOsEnv)] [[play](https://go.dev/play/p/fqyq4b3xUFQ)] - **CompareOsEnv** : 换取环境变量并与传入值进行比较。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/system#CompareOsEnv)] [[play](https://go.dev/play/p/BciHrKYOHbp)] - **ExecCommand** : 执行 shell 命令。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/system#ExecCommand)] [[play](https://go.dev/play/p/n-2fLyZef-4)] - **GetOsBits** : 获取当前操作系统位数(32/64)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/system#GetOsBits)] [[play](https://go.dev/play/p/ml-_XH3gJbW)]

23. Tuple 包实现一个元组数据类型。       回到目录

```go import "github.com/duke-git/lancet/v2/tuple" ``` #### 函数列表: - **Tuple2** : 2 元元组 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple2)] [[play](https://go.dev/play/p/3sHVqBQpLYN)] - **Tuple2_Unbox** : 返回 2 元元组的字段值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple2_Unbox)] [[play](https://go.dev/play/p/0fD1qfCVwjm)] - **Zip2** : 创建一个 Tuple2 元组切片, 其中元组的元素和传入切片元素相对应。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Zip2)] [[play](https://go.dev/play/p/4ncWJJ77Xio)] - **Unzip2** : 根据传入的 Tuple2 切片，创建一组和 Tuple2 元素相对应的切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Unzip2)] [[play](https://go.dev/play/p/KBecr60feXb)] - **Tuple3** : 3 元元组 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple3)] [[play](https://go.dev/play/p/FtH2sdCLlCf)] - **Tuple3_Unbox** : 返回 3 元元组的字段值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple3_Unbox)] [[play](https://go.dev/play/p/YojLy-id1BS)] - **Zip3** : 创建一个 Tuple3 元组切片, 其中元组的元素和传入切片元素相对应。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Zip3)] [[play](https://go.dev/play/p/97NgmsTILfu)] - **Unzip3** : 根据传入的 Tuple3 切片，创建一组和 Tuple3 元素相对应的切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Unzip3)] [[play](https://go.dev/play/p/bba4cpAa7KO)] - **Tuple4** : 4 元元组 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple4)] [[play](https://go.dev/play/p/D2EqDz096tk)] - **Tuple4_Unbox** : 返回 4 元元组的字段值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple4_Unbox)] [[play](https://go.dev/play/p/ACj9YuACGgW)] - **Zip4** : 创建一个 Tuple4 元组切片, 其中元组的元素和传入切片元素相对应。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Zip4)] [[play](https://go.dev/play/p/PEmTYVK5hL4)] - **Unzip4** : 根据传入的 Tuple4 切片，创建一组和 Tuple4 元素相对应的切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Unzip4)] [[play](https://go.dev/play/p/rb8z4gyYSRN)] - **Tuple5** : 5 元元组 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple5)] [[play](https://go.dev/play/p/2WndmVxPg-r)] - **Tuple5_Unbox** : 返回 5 元元组的字段值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple5_Unbox)] [[play](https://go.dev/play/p/GyIyZHjCvoS)] - **Zip5** : 创建一个 Tuple5 元组切片, 其中元组的元素和传入切片元素相对应。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Zip5)] [[play](https://go.dev/play/p/fCAAJLMfBIP)] - **Unzip5** : 根据传入的 Tuple5 切片，创建一组和 Tuple5 元素相对应的切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Unzip5)] [[play](https://go.dev/play/p/gyl6vKfhqPb)] - **Tuple6** : 6 元元组 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple6)] [[play](https://go.dev/play/p/VjqcCwEJZbs)] - **Tuple6_Unbox** : 返回 6 元元组的字段值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple6_Unbox)] [[play](https://go.dev/play/p/FjIHV7lpxmW)] - **Zip6** : 创建一个 Tuple6 元组切片, 其中元组的元素和传入切片元素相对应。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Zip6)] [[play](https://go.dev/play/p/oWPrnUYuFHo)] - **Unzip6** : 根据传入的 Tuple6 切片，创建一组和 Tuple6 元素相对应的切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Unzip6)] [[play](https://go.dev/play/p/l41XFqCyh5E)] - **Tuple7** : 7 元元组 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple7)] [[play](https://go.dev/play/p/dzAgv_Ezub9)] - **Tuple7_Unbox** : 返回 7 元元组的字段值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple7_Unbox)] [[play](https://go.dev/play/p/R9I8qeDk0zs)] - **Zip7** : 创建一个 Tuple7 元组切片, 其中元组的元素和传入切片元素相对应。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Zip7)] [[play](https://go.dev/play/p/WUJuo897Egf)] - **Unzip7** : 根据传入的 Tuple7 切片，创建一组和 Tuple7 元素相对应的切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Unzip7)] [[play](https://go.dev/play/p/hws_P1Fr2j3)] - **Tuple8** : 8 元元组 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple8)] [[play](https://go.dev/play/p/YA9S0rz3dRz)] - **Tuple8_Unbox** : 返回 8 元元组的字段值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple8_Unbox)] [[play](https://go.dev/play/p/PRxLBBb4SMl)] - **Zip8** : 创建一个 Tuple8 元组切片, 其中元组的元素和传入切片元素相对应。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Zip8)] [[play](https://go.dev/play/p/8V9jWkuJfaQ)] - **Unzip8** : 根据传入的 Tuple8 切片，创建一组和 Tuple8 元素相对应的切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Unzip8)] [[play](https://go.dev/play/p/1SndOwGsZB4)] - **Tuple9** : 9 元元组 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple9)] [[play](https://go.dev/play/p/yS2NGGtZpQr)] - **Tuple9_Unbox** : 返回 9 元元组的字段值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple9_Unbox)] [[play](https://go.dev/play/p/oFJFGTAuOa8)] - **Zip9** : 创建一个 Tuple9 元组切片, 其中元组的元素和传入切片元素相对应。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Zip9)] [[play](https://go.dev/play/p/cgsL15QYnfz)] - **Unzip9** : 根据传入的 Tuple9 切片，创建一组和 Tuple9 元素相对应的切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Unzip9)] [[play](https://go.dev/play/p/91-BU_KURSA)] - **Tuple10** : 10 元元组 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple10)] [[play](https://go.dev/play/p/799qqZg0hUv)] - **Tuple10_Unbox** : 返回 10 元元组的字段值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Tuple10_Unbox)] [[play](https://go.dev/play/p/qfyx3x_X0Cu)] - **Zip10** : 创建一个 Tuple10 元组切片, 其中元组的元素和传入切片元素相对应。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Zip10)] [[play](https://go.dev/play/p/YSR-2cXnrY4)] - **Unzip10** : 根据传入的 Tuple10 切片，创建一组和 Tuple10 元素相对应的切片。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/tuple.md#Unzip10)] [[play](https://go.dev/play/p/-taQB6Wfre_z)]

24. validator 验证器包，包含常用字符串格式验证函数。       回到目录

```go import "github.com/duke-git/lancet/v2/validator" ``` #### 函数列表: - **ContainChinese** : 验证字符串是否包含中文字符。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#ContainChinese)] [[play](https://go.dev/play/p/7DpU0uElYeM)] - **ContainLetter** : 验证字符串是否包含至少一个英文字母。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#ContainLetter)] [[play](https://go.dev/play/p/lqFD04Yyewp)] - **ContainLower** : 验证字符串是否包含至少一个英文小写字母。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#ContainLower)] [[play](https://go.dev/play/p/Srqi1ItvnAA)] - **ContainUpper** : 验证字符串是否包含至少一个英文大写字母。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#ContainUpper)] [[play](https://go.dev/play/p/CmWeBEk27-z)] - **IsAlpha** : 验证字符串是否只包含英文字母。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsAlpha)] [[play](https://go.dev/play/p/7Q5sGOz2izQ)] - **IsAllUpper** : 验证字符串是否全是大写英文字母。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsAllUpper)] [[play](https://go.dev/play/p/ZHctgeK1n4Z)] - **IsAllLower** : 验证字符串是否全是小写英文字母。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsAllLower)] [[play](https://go.dev/play/p/GjqCnOfV6cM)] - **IsBase64** : 验证字符串是否是 base64 编码。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsBase64)] [[play](https://go.dev/play/p/sWHEySAt6hl)] - **IsChineseMobile** : 验证字符串是否是中国手机号码。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsChineseMobile)] [[play](https://go.dev/play/p/GPYUlGTOqe3)] - **IsChineseIdNum** : 验证字符串是否是中国身份证号码。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsChineseIdNum)] [[play](https://go.dev/play/p/d8EWhl2UGDF)] - **IsChinesePhone** : 验证字符串是否是中国电话座机号码(xxx-xxxxxxxx or xxxx-xxxxxxx.)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsChinesePhone)] [[play](https://go.dev/play/p/RUD_-7YZJ3I)] - **IsCreditCard** : 验证字符串是否是信用卡号码。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsCreditCard)] [[play](https://go.dev/play/p/sNwwL6B0-v4)] - **IsDns** : 验证字符串是否是有效 dns。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsDns)] [[play](https://go.dev/play/p/jlYApVLLGTZ)] - **IsEmail** : 验证字符串是否是有效电子邮件地址。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsEmail)] [[play](https://go.dev/play/p/Os9VaFlT33G)] - **IsEmptyString** : 验证字符串是否是空字符串。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsEmptyString)] [[play](https://go.dev/play/p/dpzgUjFnBCX)] - **IsFloat** : 验证参数是否是浮点数((float32，float34)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsFloat)] [[play](https://go.dev/play/p/vsyG-sxr99_Z)] - **IsFloatStr** : 验证字符串是否是可以转换为浮点数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsFloatStr)] [[play](https://go.dev/play/p/LOYwS_Oyl7U)] - **IsNumber** : 验证参数是否是数字(integer，float)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsNumber)] [[play](https://go.dev/play/p/mdJHOAvtsvF)] - **IsNumberStr** : 验证字符串是否是可以转换为数字。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsNumberStr)] [[play](https://go.dev/play/p/LzaKocSV79u)] - **IsJSON** : 验证字符串是否是有效 json。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsJSON)] [[play](https://go.dev/play/p/8Kip1Itjiil)] - **IsRegexMatch** : 验证字符串是否可以匹配正则表达式。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsRegexMatch)] [[play](https://go.dev/play/p/z_XeZo_litG)] - **IsInt** : 验证参数是否是整数(int, unit)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsInt)] [[play](https://go.dev/play/p/eFoIHbgzl-z)] - **IsIntStr** : 验证字符串是否是可以转换为整数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsIntStr)] [[play](https://go.dev/play/p/jQRtFv-a0Rk)] - **IsIp** : 验证字符串是否是 ip 地址。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsIp)] [[play](https://go.dev/play/p/FgcplDvmxoD)] - **IsIpV4** : 验证字符串是否是 ipv4 地址。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsIpV4)] [[play](https://go.dev/play/p/zBGT99EjaIu)] - **IsIpV6** : 验证字符串是否是 ipv6 地址。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsIpV6)] [[play](https://go.dev/play/p/AHA0r0AzIdC)] - **IsStrongPassword** : 验证字符串是否是强密码：（字母+数字+特殊字符)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsStrongPassword)] [[play](https://go.dev/play/p/QHdVcSQ3uDg)] - **IsUrl** : 验证字符串是否是 url。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsUrl)] [[play](https://go.dev/play/p/pbJGa7F98Ka)] - **IsWeakPassword** : 验证字符串是否是弱密码（只包含字母+数字）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsWeakPassword)] [[play](https://go.dev/play/p/wqakscZH5gH)] - **IsZeroValue** : 判断传入的参数值是否为零值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsZeroValue)] [[play](https://go.dev/play/p/UMrwaDCi_t4)] - **IsGBK** : 检查数据编码是否为 gbk（汉字内部代码扩展规范）。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsGBK)] [[play](https://go.dev/play/p/E2nt3unlmzP)] - **IsASCII** : 验证字符串全部为 ASCII 字符。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsASCII)] [[play](https://go.dev/play/p/hfQNPLX0jNa)] - **IsPrintable** : 检查字符串是否全部为可打印字符。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsPrintable)] [[play](https://go.dev/play/p/Pe1FE2gdtTP)] - **IsBin** : 检查字符串是否是有效的二进制数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsBin)] [[play](https://go.dev/play/p/ogPeg2XJH4P)] - **IsHex** : 检查字符串是否是有效的十六进制数。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsHex)] [[play](https://go.dev/play/p/M2qpHbEwmm7)] - **IsBase64URL** : 检查字符串是否是有效的 base64 url。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsBase64URL)] [[play](https://go.dev/play/p/vhl4mr8GZ6S)] - **IsJWT** : 检查字符串是否是有效的 JSON Web Token (JWT)。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/validator.md#IsJWT)] [[play](https://go.dev/play/p/R6Op7heJbKI)] - **IsVisa** : 检查字符串是否是有效的 visa 卡号。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsVisa)] [[play](https://go.dev/play/p/SdS2keOyJsl)] - **IsMasterCard** : 检查字符串是否是有效的 MasterCard 卡号。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsMasterCard)] [[play](https://go.dev/play/p/CwWBFRrG27b)] - **IsAmericanExpress** : 检查字符串是否是有效的 American Express 卡号。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsAmericanExpress)] [[play](https://go.dev/play/p/HIDFpcOdpkd)] - **IsUnionPay** : 检查字符串是否是有效的美国银联卡号。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsUnionPay)] [[play](https://go.dev/play/p/CUHPEwEITDf)] - **IsChinaUnionPay** : 检查字符串是否是有效的中国银联卡号。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/validator.md#IsChinaUnionPay)] [[play](https://go.dev/play/p/yafpdxLiymu)]

25. xerror 包实现一些错误处理函数。       回到目录

```go import "github.com/duke-git/lancet/v2/xerror" ``` #### 函数列表: - **New** : 创建 XError 对象实例。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/xerror.md#New)] [[play](https://go.dev/play/p/w4oWZts7q7f)] - **Wrap** : 根据 error 对象创建 XError 对象实例，可添加 message。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/xerror.md#Wrap)] [[play](https://go.dev/play/p/5385qT2dCi4)] - **Unwrap** : 从 error 对象中解构出 XError。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/xerror.md#Unwrap)] [[play](https://go.dev/play/p/LKMLep723tu)] - **XError_Wrap** : 创建新的 XError 对象并将消息和 id 复制到新的对象中。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/xerror.md#XError_Wrap)] [[play](https://go.dev/play/p/RpjJ5u5sc97)] - **XError_Unwrap** : 解构 XEerror 为 error 对象。适配 github.com/pkg/errors。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/xerror.md#XError_Unwrap) [[play](https://go.dev/play/p/VUXJ8BST4c6)] - **XError_With** : 添加与 XError 对象的键和值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/xerror.md#XError_With)] [[play](https://go.dev/play/p/ow8UISXX_Dp)] - **XError_Id** : 设置 XError 对象的 id。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/xerror.md#XError_Id)] [[play](https://go.dev/play/p/X6HBlsy58U9)] - **XError_Is** : 检查目标 error 是否为 XError，两个错误中的 error.id 是否匹配。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/xerror.md#XError_Is)] [[play](https://go.dev/play/p/X6HBlsy58U9)] - **XError_Values** : 返回由 With 设置的键和值的映射。将合并所有 XError 键和值。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/xerror.md#XError_Values)] [[play](https://go.dev/play/p/ow8UISXX_Dp)] - **XError_StackTrace** : 返回与 pkg/error 兼容的堆栈信息。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/xerror.md#XError_StackTrace)] [[play](https://go.dev/play/p/6FAvSQpa7pc)] - **XError_Info** : 返回可打印的 XError 对象信息。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/xerror.md#XError_Info)] [[play](https://go.dev/play/p/1ZX0ME1F-Jb)] - **XError_Error** : 实现标准库的 error 接口。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/xerror.md#XError_Error)] [[play](https://go.dev/play/p/w4oWZts7q7f)] - **TryUnwrap** : 检查 error, 如果 err 为 nil 则展开，则它返回一个有效值，如果 err 不是 nil 则 Unwrap 使用 err 发生 panic。 [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/xerror.md#TryUnwrap)] [[play](https://go.dev/play/p/acyZVkNZEeW)] ## 如何贡献代码 #### [代码贡献指南](./CONTRIBUTION.zh-CN.md) ## 贡献者 感谢所有为lancet贡献过代码的人！ ## GitHub Stars [![Star History Chart](https://api.star-history.com/svg?repos=duke-git/lancet&type=Date)](https://star-history.com/#duke-git/lancet&Date)