string data = "Name=zhoulq&Sex=" + HttpUtility.UrlEncode("男"); byte[] msg=Encoding.UTF8.GetBytes(data); HttpWebRequest req = HttpWebRequest.Create("http://localhost:1256/Accept.aspx") as HttpWebRequest; req.ContentType = "application/x-www-form-urlencoded"; req.ContentLength = msg.Length; req.Method = "POST"; using (Stream stream=req.GetRequestStream()) { stream.Write(msg, 0, msg.Length); } using (HttpWebResponse rsp = req.GetResponse() as HttpWebResponse) { Stream stream=rsp.GetResponseStream(); StreamReader sr = new StreamReader(stream,Encoding.UTF8); lta.Text = sr.ReadToEnd(); sr.Close(); stream.Close(); }