/// <summary> /// 设置扬声器音量值 /// </summary> /// <param name="volume">音量值</param> public void SetSpeakerVolume(int volume) { var errno = PlcmProxy.SetSpeakerVolume(volume); if (ErrorNumber.OK != errno) { var errMsg = "扬声器音量设置失败,errno=" + errno; log.Error(errMsg); throw new Exception(errMsg); } log.Info("扬声器音量设置成功"); }