public CalendarBuilder next(int field, int plus) {
        calculateCalendar.set(field, calculateCalendar.get(field) + plus);
        return this;
    }
public CalendarBuilder next(int field, int plus) {
        calculateCalendar.set(field, calculateCalendar.get(field) + plus);
        return this;
    }
public CalendarBuilder next ( int field , int plus ) { calculateCalendar . set ( field , calculateCalendar . get ( field ) + plus ) ; return this ; }
增加指定字段的数量
@param field 字段{@link java.util.Calendar#set(int, int)}
@param plus
@return
增加指定字段的数量