protected bool getTimeSpan(string timeStr)

{

    //判断当前时间是否在工作时间段内

    string _strWorkingDayAM = "08:30";//工作时间上午08:30

    string _strWorkingDayPM = "17:30";

    TimeSpan dspWorkingDayAM = DateTime.Parse(_strWorkingDayAM).TimeOfDay;

    TimeSpan dspWorkingDayPM = DateTime.Parse(_strWorkingDayPM).TimeOfDay;

    //string time1 = "2017-2-17 8:10:00";

    DateTime t1 = Convert.ToDateTime(timeStr);

    TimeSpan dspNow = t1.TimeOfDay;

    if (dspNow > dspWorkingDayAM && dspNow < dspWorkingDayPM)

    {

        return true;

    }

    return false;

}