C#廣播訊息收發

傳送訊息：

 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);
            }
        }