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();
}
}
}
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