NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
        [gregorian setFirstWeekday:2];
        NSDate *fromDate = userInfo.birthDay;
        NSDate *toDate = [NSDate date];
        NSDateComponents *components = [gregorian components:NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay fromDate:fromDate toDate:toDate options:0];
        NSInteger year = components.year;
        NSInteger month = components.month;
        NSInteger day = components.day;
        
        if (year > 0) {
            if (month > 0) {
                strAge = [NSString stringWithFormat:@"%ld岁%ld个月",(long)year,(long)month];
            } else {
                strAge = [NSString stringWithFormat:@"%ld岁",(long)year];
            }
        } else if (month > 0) {
            if (day > 0) {
                strAge = [NSString stringWithFormat:@"%ld个月%ld天",(long)month,(long)day];
            } else {
                strAge = [NSString stringWithFormat:@"%ld个月",(long)month];
            }
        } else {
            if (day >= 0) {
                strAge = [NSString stringWithFormat:@"%ld天",(long)day];
            }
        }