C#廣播訊息收發

發送訊息：

 static void Main(string[] args)        {            UdpClient udpClient = new UdpClient(AddressFamily.InterNetwork);            IPEndPoint broadcastIp = new IPEndPoint(IPAddress.Broadcast, 4534);            int i = 0;            while (true)            {                i++;                byte[] b = Encoding.UTF8.GetBytes("我在廣播訊息" + i);                udpClient.Send(b, b.Length, broadcastIp);                Console.WriteLine(i);                System.Threading.Thread.Sleep(1000);            }            //udpClient.Close();            //Console.WriteLine("Done");            //Console.Read();        }

接收訊息：

static void Main(string[] args)        {            try            {                UdpClient receiveUdpClient = new UdpClient(1);                IPEndPoint localIP = new IPEndPoint(IPAddress.Any, 0);                while (true)                {                    byte[] r = receiveUdpClient.Receive(ref localIP);                    Console.WriteLine(Encoding.UTF8.GetString(r));                }            }            catch (Exception ex)            {                Console.WriteLine(ex.Message + ex.StackTrace);            }        }