static void Post(string url, string indata)

         {

            

             string outdata = "";



             CookieContainer myCookieContainer = new CookieContainer();

             //新建一个CookieContainer来存放Cookie集合 



             HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(url);

             //新建一个HttpWebRequest 

             myHttpWebRequest.ContentType = "application/x-www-form-urlencoded";

             myHttpWebRequest.ContentLength = indata.Length;

             myHttpWebRequest.Method = "POST";

             myHttpWebRequest.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; Q312461; .NET CLR 1.0.3705)";

             myHttpWebRequest.CookieContainer = myCookieContainer;

             //设置HttpWebRequest的CookieContainer为刚才建立的那个myCookieContainer 

             Stream myRequestStream = myHttpWebRequest.GetRequestStream();

             StreamWriter myStreamWriter = new StreamWriter(myRequestStream, Encoding.GetEncoding("gb2312"));

             myStreamWriter.Write(indata,0,indata .Length);

             //把数据写入HttpWebRequest的Request流 

             myStreamWriter.Close();

             myRequestStream.Close();

             //关闭打开对象 



             HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();

             //新建一个HttpWebResponse 

             myHttpWebResponse.Cookies = myCookieContainer.GetCookies(myHttpWebRequest.RequestUri);

             //获取一个包含url的Cookie集合的CookieCollection 

             Stream myResponseStream = myHttpWebResponse.GetResponseStream();

             StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("gb2312"));

             outdata = myStreamRe