/// <summary>

 /// 计算距离下一个 周XX XX时XX分XX秒，还剩下多少秒

 /// </summary>

 /// <param name="currDateTime">当时间</param>

 /// <param name="dayWeek">目标星期</param>

 /// <param name="str_HourMinuteSecond">目标时间,时分秒的字符串格式 "05:00:00"</param>

 /// <param name="totalSeconds">计算结果:还剩下的总秒数</param>

 void CalEndTimeSeconds(DateTime currDateTime, DayOfWeek dayWeek, string str_HourMinuteSecond, out int totalSeconds)

 {

     totalSeconds = ;

     TimeSpan tp = new TimeSpan();

     if (TimeSpan.TryParse(str_HourMinuteSecond, out tp))

     {

         int endPointSeconds = (int)tp.TotalSeconds;

         int currDayPassSeconds = (int)currDateTime.TimeOfDay.TotalSeconds;

         //当天还剩下的秒数

         totalSeconds = currDayPassSeconds <= endPointSeconds ? (endPointSeconds - currDayPassSeconds) : (perDaySeconds - currDayPassSeconds);

         if (currDateTime.DayOfWeek > dayWeek)

         {

             int days =  - (int)currDateTime.DayOfWeek;

             totalSeconds += days * perDaySeconds;

             totalSeconds += endPointSeconds;

         }

         else if (currDateTime.DayOfWeek == dayWeek)

         {

             totalSeconds += ;

         }

         else

         {

             int days = (int)(dayWeek - currDateTime.DayOfWeek) - ;

             totalSeconds += days * perDaySeconds;

             totalSeconds += endPointSeconds;

         }

     }

 }