golang

download_file.go

func DownloadFile(url string) (localPath string, err error) {
	resp, err := http.Get(url)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	filename := filepath.Base(url)
	localPath = "bg/" + filename

	// 创建一个文件用于保存
	out, err := os.Create(localPath)
	if err != nil {
		return
	}
	defer out.Close()

	_, err = io.Copy(out, resp.Body)
	if err != nil {
		return
	}

	return
}