C#用TCP连接发送和接收数据

服务器端程序：

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

namespace net
{
    class Program
    {
        static void Main(string[] args)
        {
            int recv;
            byte[] data = new byte[1024];
            IPEndPoint ipEnd = new IPEndPoint(IPAddress.Any, 5566);
            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            socket.Bind(ipEnd);
            socket.Listen(10);
            Console.Write("Waiting for a client");
            Socket client = socket.Accept();
            IPEndPoint ipEndClient = (IPEndPoint)client.RemoteEndPoint;
            Console.Write("Connect with {0} at port {1}", ipEndClient.Address, ipEndClient.Port);
            string welcome = "Welcome to my server";
            data = Encoding.ASCII.GetBytes(welcome);
            client.Send(data, data.Length, SocketFlags.None);
            while (true)
            {
                data = new byte[1024];
                recv = client.Receive(data);
                if (recv == 0)
                    break;
                Console.Write(Encoding.ASCII.GetString(data, 0, recv));
                client.Send(data, recv, SocketFlags.None);
            }
            Console.Write("Disconnect form{0}", ipEndClient.Address);
            client.Close();
            socket.Close();
        }
    }
}

客户端程序：

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


namespace client
{
    class Program
    {
        static void Main(string[] args)
        {
            byte[] data = new byte[1024];
            string input, stringData;
            IPAddress ip = IPAddress.Parse("127.0.0.1");
            IPEndPoint ipEnd = new IPEndPoint(ip, 5566);
            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            try
            {
                socket.Connect(ipEnd);
            }
            catch (SocketException e)
            {
                Console.Write("Fail to connect server");
                Console.Write(e.ToString());
                return;
            }
            int recv = socket.Receive(data);
            stringData = Encoding.ASCII.GetString(data,0,recv);
            Console.Write(stringData);
            while (true)
            {
                input = Console.ReadLine();
                if (input == "exit")
                {
                    break;
                }
                socket.Send(Encoding.ASCII.GetBytes(input));
                data = new byte[1024];
                recv = socket.Receive(data);
                stringData = Encoding.ASCII.GetString(data,0,recv);
                Console.Write(stringData);
            }
            Console.Write("disconnect from server");
            socket.Shutdown(SocketShutdown.Both);
            socket.Close();
        }
    }
}