C#简易下载文件程序

using System.Web;
using System.Net;
byte[] data = new WebClient().DownloadData("http://zhangmenshiting.baidu.com/data2/music/35206775/18592550223200128.mp3?xcode=668554966d1f15a2d7883bff1cc75478");
File.WriteAllBytes(fileName, data);