udp发送接收数据

using System;
using System.Collections.Generic;
using System.Text;

using System.Net;
using System.Net.Sockets;
using System.Threading;

namespace jieshou
{
    class Program
    {
        static void Main(string[] args)
        {
                Jie();
        }

        static void Jie()
        {
            int i = 0;

             Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);//初始化一个Scoket协议

            IPEndPoint iep = new IPEndPoint(IPAddress.Any, 3000);//初始化一个侦听局域网内部所有IP和指定端口

            EndPoint ep = (EndPoint)iep;

            socket.Bind(iep);//绑定这个实例

            while (true)
            {
                byte[] buffer = new byte[1024];//设置缓冲数据流

                socket.ReceiveFrom(buffer, ref ep);//接收数据,并确把数据设置到缓冲流里面

                Console.WriteLine(Encoding.Unicode.GetString(buffer).TrimEnd('\u0000') + " " + i.ToString());

                i++;
            }
        }
    }
}



using System;
using System.Collections.Generic;
using System.Text;

using System.Net;
using System.Net.Sockets;
using System.Threading;

namespace guangbo
{
    class Program
    {
        //private Thread trd;
        public int num = 0;

        static void Main(string[] args)
        {
            //Thread trd = new Thread(new ThreadStart(guangbo()));
            //trd.IsBackground = true;
            //trd.Start();
            for (int i = 0; i < 10000; i++)
            {
                Console.WriteLine(i);
                //Thread.Sleep(10000);
                Guang();
            }
            Console.ReadKey();
        }

        static  void Guang()
        {
            Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);//初始化一个Scoket实习,采用UDP传输

            IPAddress ip = IPAddress.Parse("192.168.111.195");

            //ip可以用IPAddress.Any来代替全发送。

            IPEndPoint iep = new IPEndPoint(ip, 3000);//初始化一个发送广播和指定端口的网络端口实例

            sock.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1);//设置该scoket实例的发送形式


            string request ="你好，hi";//初始化需要发送而的发送数据

            byte[] buffer = Encoding.Unicode.GetBytes(request);

            sock.SendTo(buffer, iep);

            sock.Close();            
            
            //Console.WriteLine("nihao");
        }
    }
}