C#.net udp点对点聊天程序(4)

            Remote = (EndPoint)(sender); 
             
            while (true) 
            { 
                byte[] data = new byte[1024]; 
                newsock2.ReceiveFrom(data, ref Remote); 
                button4.Enabled = true; 
//              textBox4.Text = sender.Address.ToString();  //目前无法通过这样获得客户端ip和端口号  
//              textBox5.Text = sender.Port + "";  
                richTextBox2.AppendText(Encoding.Default.GetString(data)); 
            } 
//得到客户机IP               
            IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
            Remote = (EndPoint)(sender);
           
            while (true)
            {
                byte[] data = new byte[1024];
                newsock2.ReceiveFrom(data, ref Remote);
                button4.Enabled = true;
//              textBox4.Text = sender.Address.ToString();  //目前无法通过这样获得客户端ip和端口号
//              textBox5.Text = sender.Port + "";
                richTextBox2.AppendText(Encoding.Default.GetString(data));
            }服务器想客户端发送消息:

[csharp]
byte[] b = Encoding.Default.GetBytes(textBox6.Text + ":\n" + textBox8.Text+ "\n"); 
            //发送信息