public void Send(PacketData packetData)
 {
     try
     {
         byte[] buf = packetData.GetBuffer();
         _client.GetStream().Write(buf, 0, buf.Length);
     }
     catch (InvalidOperationException e)
     {
         Debug.Log(e);
         _client.Close();
         _client   = new TcpClient();
         IsConnect = false;
     }
     catch (Exception e)
     {
         Debug.Log(e);
     }
 }