一个下载图片的小程序

package main

import (
"bytes"
"fmt"
"io"
"io/ioutil"
"net/http"
"os"
"time"
)

func main() {
fmt.Println(time.Now())
getFiles("http://www.baidu.com/img/", "270Gif_75f179cfd23e0afe31365b7e1697a749.gif", "C:/Documents and Settings/admin/桌面/temp/", "file1.gif")
}

func getFiles(sourceUrl, sourceName, destinationUrl, destinationName string) {
resp, err := http.Get(sourceUrl)
if err != nil {
panic(err)
}
// fmt.Println(resp)
defer resp.Body.Close()
pix, err := ioutil.ReadAll(resp.Body)
// fmt.Println(pix)
deationationFile, err := os.Create(destinationUrl + destinationName)
if err != nil {
panic(err)
}
n, err := io.Copy(deationationFile, bytes.NewReader(pix))
fmt.Println(n)
}

很简单