[网络协议]C#用UDP网络协调助手代码

??? public partial class ceshiForm2 : Form
??? {
??????? public ceshiForm2()
??????? {
??????????? InitializeComponent();
??????? }
??????? IPAddress ip;
??????? IPEndPoint point = new IPEndPoint(IPAddress.Any, 0);
??????? string protocol;
??????? Socket aimSocket;
??????? Socket mySocket;
??????? UdpClient RecUdpClient;

??????? private void ceshiForm2_Load(object sender, EventArgs e)
??????? {
??????????? Control.CheckForIllegalCrossThreadCalls = false;
??????????? aimSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);//建立通信的Socket
??????????? ip = IPAddress.Parse("10.0.20.11");
??????????? point = new IPEndPoint(ip, Convert.ToInt32(51201));
??????????? MessageBox.Show("UDP Client设置成功");
??????????? Thread thReceive = new Thread(UCReceive);
??????????? thReceive.IsBackground = true;
??????????? thReceive.Start();
??????? }
??????? //UDP Clinet接收线程
??????? void UCReceive()
??????? {
??????????? byte[] buffer = new byte[1024];
??????????? while (true)
??????????? {
??????????????? try
??????????????? {
??????????????????? IPEndPoint ss = new IPEndPoint(IPAddress.Any, 0);
??????????????????? EndPoint Remote = (EndPoint)(ss);
??????????????????? int r = aimSocket.ReceiveFrom(buffer, ref Remote);//接收目标IP Remote 发送过来的数
??????????????????? string strRec = Encoding.Default.GetString(buffer, 0, r);
??????????????????? MessageBox.Show(Remote.ToString() + ": " + strRec + "\r\n");
??????????????? }
??????????????? catch
??????????????? { }
??????????? }
??????? }

??????? private void btnPlaySound_Click(object sender, EventArgs e)
??????? {
??????????? try
??????????? {
??????????????? byte[] buffer = Encoding.Default.GetBytes("TEXT_PLAY; 控制,1234;2;"+txtSoundContent.Text);
??????????????? aimSocket.SendTo(buffer, point);
??????????????? MessageBox.Show("发送");
??????????? }
??????????? catch
??????????? { }
??????? }
??? }