C \ # 소켓 통신 클 라 이언 트 서버 엔 드 코드

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;

namespace TcpClient
{
    public partial class Form1 : Form
    {
        public string serverIP = "127.0.0.1";
        public int serverPort = 8888;
        public IPAddress serverIPAddress;
        public System.Net.Sockets.TcpClient tcpClient;

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            serverIP = ipbox.Text;
            serverIPAddress = IPAddress.Parse(serverIP);
            serverPort = int.Parse(portbox.Text);
            tcpClient = new System.Net.Sockets.TcpClient();
            tcpClient.Connect(serverIPAddress,serverPort);

            if (tcpClient == null)
            {
                MessageBox.Show("        ，   ！",
                                "  ",
                                MessageBoxButtons.OK,
                                MessageBoxIcon.Exclamation);
            }
            else
            {
                //               
                NetworkStream networkStream = tcpClient.GetStream();
                //          
                byte[] userName_byte = Encoding.Unicode.GetBytes(userNameBox.Text.Trim());
                networkStream.Write(userName_byte,0,userName_byte.Length);
                networkStream.Flush();

                //           
                byte[] inforBuffer = new byte[100];
                networkStream.Read(inforBuffer,0,inforBuffer.Length);
                networkStream.Flush();
                string resultFromServer = Encoding.Unicode.GetString(inforBuffer);
                this.statusbox.Text = resultFromServer;
            }

        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
using System.Net;
using System.Threading;

namespace TcpServer
{
    class Listener
    {
        public TcpListener tcpListener;
        public int port = 8888;
        public IPAddress ipAddress = IPAddress.Parse("10.108.13.27");

        public void Start()
        {
            tcpListener = new TcpListener(ipAddress,port);
            tcpListener.Start();
            Console.WriteLine("begin listen port {0}",port);

            while (true)
            {
                byte[] buffer = new byte[100];

                Socket newClient = tcpListener.AcceptSocket();
                newClient.Receive(buffer);
                string userName = Encoding.Unicode.GetString(buffer).TrimEnd('\0');
                Console.WriteLine("user :{0} login",userName);

                newClient.Send(Encoding.Unicode.GetBytes("success"));

                Thread threadClient = new Thread(new ParameterizedThreadStart(clientProcess));
                threadClient.Start(newClient);
            }
        }

        public void clientProcess(object info)
        {
            Socket socket = info as Socket;
        }
    }
}