Question

所以我有这个php代码，需要移植到C＃

 $socket = stream_socket_client('udp://'.$server , $errno, $errstr, 1);
    fwrite($socket, "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x67\x69\x65\x33\x05");
    $response = fread($socket, 2048);

我试图在C＃中做同样的事情

        private void start_Click(object sender, EventArgs e)
        {
          var client = new UdpClient();
          IPEndPoint ep = new 
          IPEndPoint(IPAddress.Parse("censored"),censored);

          client.Connect(ep);

          Byte[] sendBytes = Encoding.ASCII.GetBytes("\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x67\x69\x65\x33\x05");

          client.Send(sendBytes, sendBytes.Length);

          var received = client.Receive(ref ep);

          result.Text = received.ToString();
    }

但是它只是冻结而没有响应（超时）

Answer 1

Byte[] sendBytes = Encoding.ASCII.GetBytes("\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x67\x69\x65\x33\x05");

此行将不会产生您期望的字节数组。至于原因，请在此处说明：ASCIIEncoding.ASCII.GetBytes() Returning Unexpected Value

尝试以下方法：

var sendBytes = new byte[] { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x67, 0x69, 0x65, 0x33, 0x05 }

从游戏服务器获取服务器信息（移植现有代码）

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