public Form1()
        {
            InitializeComponent();

            InitNetDeviceListUI();

            netManager   = ProtocolManager.GetInstance();
            recvHandler  = new ProtocolManager.OnProtocolRecvListener(OnProtocolRecvListener);
            errorHandler = new ProtocolManager.OnProtocolErrorListener(OnProtocolErrorListener);
            netManager.eventProtocolRecvHandler  += recvHandler;
            netManager.eventProtocolErrorHandler += errorHandler;
        }
        private void Init()
        {
            labelConnectStatus.Text = "设备未连接";

            netManager   = ProtocolManager.GetInstance();
            recvHandler  = new ProtocolManager.OnProtocolRecvListener(OnProtocolRecvListener);
            errorHandler = new ProtocolManager.OnProtocolErrorListener(OnProtocolErrorListener);
            netManager.eventProtocolRecvHandler  += recvHandler;
            netManager.eventProtocolErrorHandler += errorHandler;

            netManager.SetOnGetMachineTemperatureListener(onGetMachinetemperature);
            netManager.SetOnReportValueListener(onReportValue);
        }