计算开始时间，结束时间 中间间隔毫秒数

/// <summary>
/// 距离下一个运行时间还需sleep多少毫秒
/// </summary>
/// <returns></returns>
public static int SleepMilliseconds()
{
DateTime NowDate = DateTime.Now;
string nowDate = NowDate.ToString("yyyy-MM-dd");
string startTime = nowDate + " " + Config.StartTime;
string endTime = nowDate + " " + Config.EndTime;
string finishTime = nowDate + " " + "23:59:59";

DateTime StartTime = DateTime.Parse(startTime);
DateTime EndTime = DateTime.Parse(endTime);
DateTime FinishTime = DateTime.Parse(finishTime);

TimeSpan A, B;
if (DateTime.Compare(StartTime, EndTime) < 0)
{
//开始时间早于结束时间   开始时间 ~ 结束时间
if (DateTime.Compare(StartTime, NowDate) <= 0 && DateTime.Compare(NowDate, EndTime) <= 0)
{
return 0;
}
else if (DateTime.Compare(NowDate, StartTime) < 0)
{
A = new TimeSpan(StartTime.Ticks);
B = new TimeSpan(NowDate.Ticks);
return (int)A.Subtract(B).Duration().TotalMilliseconds;
}
else
{
A = new TimeSpan(StartTime.AddDays(1).Ticks);
B = new TimeSpan(NowDate.Ticks);
return (int)A.Subtract(B).Duration().TotalMilliseconds;
}
}
else
{
//开始时间大于结束时间   开始时间 ~ 23:59:59  和  00:00:01  ~ 结束时间
if (DateTime.Compare(StartTime, NowDate) <= 0 || DateTime.Compare(NowDate, EndTime) <= 0)
{
return 0;
}
else
{
A = new TimeSpan(StartTime.Ticks);
B = new TimeSpan(NowDate.Ticks);
return (int)A.Subtract(B).Duration().TotalMilliseconds;
}
}
}