视频 http下载代码 dn.go
总体感觉特别简单，网上看了下 net/http ，io这2个库的使用， 几分钟就写完了，感觉cpp 在做工具这块 开发效率的确差太多（没有轮子的话）。
再放一个 go example 网站，https://gobyexample.com/
package main ???????????import ( ?????????"fmt" ?????????"io" ?????????"net/http" ?????????"os" ?????????"strconv" ?????) ?/* ???var ( ?????????//url = "http://flv5.bn.netease.com/live163/store/208588/serverpush_18783_1521024752481_208588_0-1.ts" ???????url ?string = "http://flv5.bn.netease.com/live163/store/208588/serverpush_18783_1521024752481_208588_0-" ???????url_suffix string = ".ts" ???) ?*/ ?????????func main() { ???????fmt.Println("download begin.....") ???????url := "http://flv5.bn.netease.com/live163/store/208588/serverpush_18783_1521024752481_208588_0-" ???????url_suffix := ".ts" ???????for i := 180; i <= 180; i++ { ???????????????????????str_index := strconv.Itoa(i) ???????// 通过Itoa方法转换 ?????????????//str2 := fmt.Sprintf("%d", i) ?????// 通过Sprintf方法转换 ?????????????//fmt.Println(str_index) ??// 打印str1 ?????????????????strFinal := url+str_index+ url_suffix ???????????res, err := http.Get(strFinal) ?????????????if err != nil { ?????????????????panic(err) ?????????????} ?????????????f, err := os.Create(str_index+url_suffix) ?????????????if err != nil { ?????????????????panic(err) ?????????????} ?????????????fileSize,writeErr := io.Copy(f, res.Body) ???????????fmt.Println(strFinal + " download done,", "file size(byte)=", fileSize) ???????????if writeErr != nil { ?????????????????fmt.Println(strFinal + " download failed ", ?"errorInfo=", writeErr.Error()) ???????????????panic(err) ?????????????} ?????????} ???????????????fmt.Println("download finish.") ???} ?go http 下载文件
原文地址：https://www.cnblogs.com/scotth/p/9074570.html