Go 好用第三方库

go 的分页器：

参考： https://github.com/vcraescu/go-paginator

代码：https://files.cnblogs.com/files/zach0812/go_paginator.zip

go 的验证码：

一个简单的Go语言实现的验证码

https://github.com/lifei6671/gocaptcha

package main

import (
    "fmt"
    "html/template"
    "log"
    "net/http"

    "github.com/lifei6671/gocaptcha"
)

// 项目中需要有  fonts ，tpl 目录  
func main() {
    // 加载所有的字体
    err := gocaptcha.ReadFonts("fonts",".ttf")
    if err != nil {
        fmt.Println("load fonts failed,err:",err)
        return
    }
    http.HandleFunc("/",Index)
    http.HandleFunc("/get/",Get)

    http.ListenAndServe(":9999",nil)

}

func Index(response http.ResponseWriter, request *http.Request)  {
    t,err := template.ParseFiles("tpl/index.html")
    if err != nil {
        log.Fatal(err)
    }
    _ = t.Execute(response,nil)
}
const (
    w = 250 // 验证码图片的宽
    h = 100 // 验证码图片的高
)
func Get(response http.ResponseWriter, request *http.Request)  {
    captchaImg :=  gocaptcha.NewCaptchaImage(w,h,gocaptcha.RandLightColor())
    // 下面就在 captchaImg 这个对象    画各种东西了

    err := captchaImg.DrawNoise(gocaptcha.CaptchaComplexLower).
        DrawTextNoise(gocaptcha.CaptchaComplexLower).
        DrawBorder(gocaptcha.ColorToRGB(0xDDA0DD)).
        DrawText("00oo").
        DrawSineLine().
        Error
    if err != nil {
        fmt.Println(err)
    }
    _ = captchaImg.SaveImage(response,gocaptcha.ImageFormatPng)
}