private void BTConnect_Click(object sender, EventArgs e) { tCPClient = new TCPClient(tBHost.Text.Trim(), int.Parse(tBPort.Text.Trim())); if (tCPClient.startClient()) { Thread th_receive = new Thread(Receive); th_receive.IsBackground = true; th_receive.Start(); rTBMSG.Text += "连接成功\n"; } else { rTBMSG.Text += "连接失败\n"; } }