一段提交用户名和密码到指定网址的代码（大漠提供）--青蛙非王子(lostfrog)

string URL = "http://www.123cha.com?str=ddf";
   HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(URL);          
   HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();    
   Stream receiveStream = myHttpWebResponse.GetResponseStream();
   Encoding encode = System.Text.Encoding.GetEncoding("gb2312");   
   StreamReader readStream = new StreamReader( receiveStream, encode );
   String str=readStream.ReadToEnd();
   //textBox1.Text = str;
   //Response.Write (str);