using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Net;

using System.Net.Sockets;

private void button1_Click(object sender, EventArgs e)

{

/*構建UDP伺服器*/

/*得到本機IP，設定UDP埠號*/

IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 10000);

Socket command_sock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);

/*繫結網路地址*/

command_sock.Bind(ipep);

Console.WriteLine("這是個UDP伺服器，名字是 {0}", Dns.GetHostName());

while (true)

{

/*接收資訊*/

command_sock.ReceiveTimeout = 10000; //設定接收超時時間單位毫秒

try

{

int recv = command_sock.ReceiveFrom(data, ref Remote);

/*得到目標的IP 埠*/

Console.WriteLine("Message received from {0}: ", Remote.ToString());

/*得到收到的資訊*/

Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));

}

catch

{

Console.WriteLine("連線超時~~ ");

continue;

}

if(data[0] == 1)

{

/*開啟新視窗，前提你已經建立了新的form*/

form2 new_form= new form2 ();

new_form.ShowDialog();

}

else if(data[0] == 2)

{

/*關閉現在的視窗*/

this.Close();

}

else if(data[0] == 3)

{

/*隱藏現在視窗*/

this.Hide();

}

}

}