go 爬取图片

package main

import (
	"net/http"
	"fmt"
	"io/ioutil"
	"strings"
)

func downloadJpg(url string,file_name string)  {
	client := &http.Client{}

	req,err := http.NewRequest("GET",url,nil)
	if err != nil{
		fmt.Println(err)
	}

	req.Header.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.108 Safari/537.2222")
	req.Header.Add("Referer","http://i1.shaodiyejin.com/")
	resp,err := client.Do(req)
	defer resp.Body.Close()

	byteCotent, err := ioutil.ReadAll(resp.Body)
	handError(err)

	ioutil.WriteFile(file_name, byteCotent, 0666)

}

func main() {
	url := "http://i1.shaodiyejin.com/uploads/tu/201909/9999/89130de80a.jpg"
	str1 := strings.Split(url, "/")
	file_name := str1[len(str1)-1]
	downloadJpg(url,"./imgs/"+file_name)
}

func handError(err error)  {
	if err != nil{
		fmt.Println("error",err)
	}
}