private void Button1_Click(object sender, System.EventArgs e)

        {

            HttpWebRequest HttpWReq=(HttpWebRequest)WebRequest.Create("http://tb.donews.net/TrackBack.aspx?PostId=527773");

            HttpWReq.Method="POST";

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

        //    string p="title=引用到的文章标题&url=引用到的地址&excerpt=正文&blog_name=作者";

            string p="title=title1&url=http://www.gmail.com&excerpt=mainpart&blog_name=me";

            ASCIIEncoding encoding=new ASCIIEncoding();

            byte[]  byte1=encoding.GetBytes(p);

            Stream sm=HttpWReq.GetRequestStream();

            sm.Write(byte1,0,byte1.Length);

            sm.Close();

            HttpWebResponse HttpWResp = (HttpWebResponse)HttpWReq.GetResponse();

            StreamReader sr = new StreamReader(HttpWResp.GetResponseStream());

    //        StreamReader sr = new StreamReader(HttpWResp.GetResponseStream(),Encoding.GetEncoding("GB2312"));

            foreach(string i in HttpWReq.Headers)

            Response.Write(i+"="+HttpWReq.Headers[i]+"<br>");

            Response.Write(sr.ReadToEnd());

            HttpWResp.Close();

        }

效果见：http://blog.donews.com/civ3/archive/2005/08/26/527773.aspx

说实话真觉得不如在脚本中方便。

看着sm.Write(byte1,0,byte1.Length);就觉得不爽。

xmlhttp.send("title=title1&url=http://www.gmail.com&excerpt=mainpart&blog_name=me");多直接！