另外一个关于发包的例子

using System;
using System.Text;
using System.Windows.Forms;
using System.Collections;
using System.Net;
using System.Net.Sockets;
using System.Runtime.InteropServices;

        public string GetTicket(string ChallengeString)
        ...{
            string getTicketCmd = "GET https://login.passport.com/login2.srf HTTP/1.1 " + "Authorization: Passport1.4 OrgVerb=GET,OrgURL=http%3A%2F%2Fmessenger%2Emsn%2Ecom,sign-in="+this._userName.Replace("@", "%40") + ",pwd=" + this._password + "," + ChallengeString + " " + "Host: login.passport.com ";
            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, 1);
            IPEndPoint ipepServer = new IPEndPoint(IPAddress.Parse("10.0.0.172"),80);
            socket.Connect(ipepServer);
            if (socket != null)
            ...{
                Encoding ASCII = Encoding.ASCII;
                Byte[] sendCmd = ASCII.GetBytes(getTicketCmd);
                int sendState = socket.Send(sendCmd, sendCmd.Length, 0);
                UTF8Encoding UTF8 = new UTF8Encoding();
                Byte[] RecvBytes = new byte[1024];
                string data = "";
                int bytes = 0;
                bytes = socket.Receive(RecvBytes, RecvBytes.Length, 0);
                data = UTF8.GetString(RecvBytes, 0, bytes);
                string[] tmpDataList = data.Split(new char[] ...{ ''' });
                socket.Shutdown(SocketShutdown.Both);
                socket.Close();
                return tmpDataList[1];
            }
            else
            ...{
                return "";
            }