/// <summary>
/// 开关灯
/// </summary>
/// <param name="classroom"></param>
/// <param name="nodeAdd"></param>
/// <param name="onoff"></param>
/// <returns></returns>
public void SetLamp(string classroom, string nodeAdd, string onoff)
{
byte fun = (byte)Convert.ToInt32(AppSettingUtils.GetValue("Lamp"));
byte b;
// byte fun = 0x01;
b = (byte)(onoff == StateType.OPEN ? 0x01 : 0x00);
PortService.SendConvertCmd(fun, classroom, nodeAdd, b);
}