static TradingCalendar()
 {
     CalendarBegin = new DateTime(DateTime.Today.Year - 1, 1, 1);
     CalendarEnd   = new DateTime(DateTime.Today.Year + 1, 12, 31);
     Instance      = new TradingCalendar();
     Logger        = LogManager.GetLogger("TradingCalendar");
 }
 static TradingCalendar()
 {
     CalendarBegin = new DateTime(DateTime.Today.Year - 1, 1, 1);
     CalendarEnd   = new DateTime(DateTime.Today.Year, 12, 31);
     Instance      = new TradingCalendar();
 }