C# WebClient gzip

WebClient 实现Gzip

public class XWebClient : WebClient {              protected override WebRequest GetWebRequest(Uri address) {                  HttpWebRequest request = base.GetWebRequest(address) as HttpWebRequest;                  request.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;                  return request;              }          }