/// <summary>
/// 起运计算
/// </summary>
private void computeStart()
{
JieQi prev = lunar.getPrevJie();
JieQi next = lunar.getNextJie();
Solar current = lunar.getSolar();
Solar start = forward ? current : prev.getSolar();
Solar end = forward ? next.getSolar() : current;
int hourDiff = LunarUtil.getTimeZhiIndex(end.toYmdHms().Substring(11, 5)) - LunarUtil.getTimeZhiIndex(start.toYmdHms().Substring(11, 5));
DateTime endCalendar = new DateTime(end.getYear(), end.getMonth(), end.getDay(), 0, 0, 0, 0);
DateTime startCalendar = new DateTime(start.getYear(), start.getMonth(), start.getDay(), 0, 0, 0, 0);
int dayDiff = endCalendar.Subtract(startCalendar).Days;
if (hourDiff < 0)
{
hourDiff += 12;
dayDiff--;
}
int monthDiff = hourDiff * 10 / 30;
int month = dayDiff * 4 + monthDiff;
int day = hourDiff * 10 - monthDiff * 30;
int year = month / 12;
month = month - year * 12;
this.startYear = year;
this.startMonth = month;
this.startDay = day;
}