C# Socket 入门3 UPD(转)

今天来写一个UPD

1.服务端:

using System;

using System.Collections.Generic;

using System.Text;

using System.Net.Sockets;

using System.Net;

namespace ConsoleApplication1

{

    class Program

    {

        static void Main(string[] args)

        {

            // 1.创建套节字

            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);

            // 2.填充IP

            IPEndPoint ipe = new IPEndPoint(IPAddress.Any, 4321);

            // 3.绑定

            socket.Bind(ipe);

            // 等待客户机连接

            Console.WriteLine("This is a Server, host name is {0}", Dns.GetHostName());

            Console.WriteLine("Waiting for a client...");

            // 4.得客户机IP

            IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);

            EndPoint remote = (EndPoint)sender;

            // 5.接收客户机数据

            byte[] buffer = new byte[1024];

            socket.ReceiveFrom(buffer, ref remote);

            Console.WriteLine(remote.ToString());

            Console.WriteLine(Encoding.Unicode.GetString(buffer));

            Console.ReadKey();

        }

    }

}

2.客户端

            // 1.创建套节字

            m_s = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);

            // 2.填写服务器IP

            IPAddress ip = IPAddress.Parse("127.0.0.1");

            IPEndPoint ipe = new IPEndPoint(ip, 4321);

            string welcome = "你好呀...";

            byte[] data = new byte[1024];

            data = Encoding.Unicode.GetBytes(welcome);

            

            // 3.发送数据

            m_s.SendTo(data, data.Length, SocketFlags.None, ipe);

            Console.ReadKey();

3. 效果

一样， 非常简单@