Uri uri = new Uri(url);
            HttpWebRequest myReq = (HttpWebRequest)WebRequest.Create(uri);
            myReq.UserAgent = "User-Agent:Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705";
            myReq.Accept = "*/*";
            //myReq.Headers.Add("Accept-Encoding","gzip,deflate");
            myReq.KeepAlive = true;
            myReq.Headers.Add("Accept-Language", "zh-cn,en-us;q=0.5");
            HttpWebResponse result = (HttpWebResponse)myReq.GetResponse();

            Stream receviceStream = result.GetResponseStream();
            StreamReader readerOfStream = new StreamReader(receviceStream, System.Text.Encoding.GetEncoding("gb2312"));
            string strHTML = readerOfStream.ReadToEnd();


            readerOfStream.Close();
            receviceStream.Close();
            result.Close();
            return strHTML;