protected void Page_Load(object sender, EventArgs e)
    {
        //创建请求连接信息
        string url = "http://localhost:1393/MoNiDengLu/Login.aspx";
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
        request.Method = "POST";
        request.ContentType = "application/x-www-form-urlencoded";
        string userName = "1";
        string passWord = "1";
        string data = "Button1=Button&ScriptManager1=UpdatePanel1%7CButton1&TextBox1="+userName+"&TextBox2="+passWord+"&__ASYNCPOST=true&__EVENTARGUMENT=&__EVENTTARGET=&__EVENTVALIDATION=%2FwEWBALmityHBALs0bLrBgLs0fbZDAKM54rGBlRC8oDQj1W%2FTfi7ZqiSWOmb%2FD5y&__VIEWSTATE=%2FwEPDwUKMTc4MDEwMTAwNA9kFgICAw9kFgICAw9kFgJmD2QWAgIHDw8WAh4EVGV4dAUM55m75b2V5oiQ5YqfZGRk5YHabszuzefMIAFShVj9GKGye74%3D";
        request.ContentLength = data.Length;
        request.AllowAutoRedirect = true;
            
        //将POST信息附加到请求流中
        StreamWriter writer = new StreamWriter(request.GetRequestStream(), Encoding.ASCII);
        writer.Write(data);
        writer.Flush();

        //获取响应，并设置响应编码
        HttpWebResponse response = (HttpWebResponse)request.GetResponse();
        string encoding = response.ContentEncoding;
        if (encoding == null || encoding.Length < 1)
        {
            encoding = "utf-8"; //默认编码
        }
        //读取响应流
        StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding(encoding));
        data = reader.ReadToEnd();
        Response.Write(data);
        reader.Dispose();
        response.Close();

    }