go 获取沪深A股代码

package main

import (
    "fmt"
    "io"
    "io/ioutil"
    "net/http"
    "regexp"
    "strconv"
    "strings"

    "github.com/PuerkitoBio/goquery"
    "golang.org/x/text/encoding/simplifiedchinese"
)

func Getlist(url string) []string {
    var stocks []string
    req, _ := http.NewRequest("GET", url, nil)
    // 设置header
    req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 6.1;WOW64) AppleWebKit/537.36 (KHTML,like GeCKO) Chrome/45.0.2454.85 Safari/537.36 115Broswer/6.0.3")
    req.Header.Set("Referer", "https://movie.douban.com/")
    req.Header.Set("Connection", "keep-alive")
    resp, err := (&http.Client{}).Do(req)
    if err != nil {
        panic(err)
    }
    reader := simplifiedchinese.GB18030.NewDecoder().Reader(resp.Body)
    doc, err := goquery.NewDocumentFromReader(reader)
    if err != nil {
        panic(err)
    }

    doc.Find("#quotesearch>ul>li>a").
        Each(func(i int, s *goquery.Selection) {
            //fmt.Printf("%v", s)
            stock := s.Text()
            //正则匹配0 3 6 类型的代码
            matched, _ := regexp.MatchString(`.+?[036]\d{5}.+?`, stock)
            if matched {
                if !strings.Contains(stock, `(688`) { //去掉科创版
                    stocks = append(stocks, stock)
                }
            }
        })
    return stocks
}
func Index(w http.ResponseWriter, r *http.Request) {
    url := "http://quote.eastmoney.com/stock_list.html"
    var stocks []string
    stocks = Getlist(url)
    A := strings.Join(stocks[:], "\t")
    io.WriteString(w, A)
    if err := ioutil.WriteFile("./stock.txt", []byte(A), 0644); err != nil {
        fmt.Println(err)
    }

}

func main() {
    http.HandleFunc("/", Index)
    http.ListenAndServe(":8000", nil)

}