1. 项目地址：
    https://github.com/PuerkitoBio/goquery

  2. 用法：

    1. 从远程获取内容：
       package main
 import (
     "fmt"
     "github.com/PuerkitoBio/goquery"
     "net/http"
 )
 func main() {
     url := "https://www.baidu.com"
     res, _ := http.Get(url)
     defer res.Body.Close()
     doc, _ := goquery.NewDocumentFromReader(res.Body)
     doc.Find(".s_btn_wr").Each(func(i int, s *goquery.Selection) {
         attr,_ := s.Find("input").Attr("value")
         fmt.Println(attr)
     })
 }
 // 输出
 百度一下
    2. 读取本地内容：
       package main
 import (
     "fmt"
     "github.com/PuerkitoBio/goquery"
     "strings"
 )
 func main() {
     html := `
 <!doctype html>
 <html lang="en">
 <head>
     <title>Document</title>
 </head>
 <body>
     <div id="one">
         <span class="foo">span 元素</span>
     </div>
 </body>
 </html>
 `
     r := strings.NewReader(html)  // 创建 reader
     doc, _ := goquery.NewDocumentFromReader(r)
     doc.Find("#one").Each(func(i int, s *goquery.Selection) {
         attr,_ := s.Find("span").Attr("class")
         fmt.Println(attr)
     })
 }
 // 输出
 foo
文档更新时间: 2024-04-20 10:57   作者：lee