private async void DoWork(object state)
{
_timer?.Change(Timeout.Infinite, 0);
_logger.LogDebug("服务开始工作……");
stopwatch.Restart();
await RobotHelper.Send(robotSetting, _logger);
stopwatch.Stop();
_logger.LogDebug($"------------------总耗时：{(double)stopwatch.ElapsedMilliseconds/1000}秒---------------");
_timer?.Change(TimeSpan.FromMilliseconds(robotSetting.PollingTime), TimeSpan.Zero);
}