/// <summary> /// 计算时间差 /// </summary> /// <param name="t">时间1</param> /// <param name="t2">时间2</param> /// <returns>返回值：时间差(毫秒为单位)</returns> private long TimeDiff(DateTime t, DateTime t2) {     long lReturn = -1;     System.TimeSpan NowValue = new TimeSpan(t.Ticks);     System.TimeSpan TimeValue = new TimeSpan(t2.Ticks);     System.TimeSpan DateDiff = TimeSpan.Zero;     try     { //计算时间差 //DateDiff = TimeValue.Subtract(NowValue).Duration(); DateDiff = TimeValue.Subtract(NowValue); int hours = DateDiff.Hours; int minutes = DateDiff.Minutes; int seconds = DateDiff.Seconds; int milliseconds = DateDiff.Milliseconds; string TimeDiff = hours.ToString() + ":"     + minutes.ToString() + ":"     + seconds.ToString() + "."     + milliseconds.ToString(); Program.log.WriteLog("时间差："+TimeDiff, System.DateTime.Now.ToString(), Orid.Log.LogManagerBase.LogMode.logNormal); //是否比现在的时间小，如果小就设置成第二天再启动，否则当天启动 if (hours <= 0 && minutes <= 0 && seconds <= 0 && milliseconds <= 0)     hours += 24; lReturn = hours * 3600 * 1000     + minutes * 60 * 1000     + seconds * 1000     + milliseconds;     }     catch (Exception e) { throw new Exception(e.Message);     }     return lReturn; }  

long dueTime = this.TimeDiff(System.DateTime.Now, Convert.ToDateTime(config.Pitch)); //timer = new System.Threading.Timer(tcb, auto, dueTime, System.Threading.Timeout.Infinite); timer = new System.Threading.Timer(tcb, auto, dueTime, 24 * 3600 * 1000);