test

content

NSDate *now = [NSDate date];
        NSDateFormatter *format = [[NSDateFormatter alloc]init];
        [format setDateFormat:@"yyyy-MM-dd"];
        NSString *nowDate = [format stringFromDate:now];
        NSLog(@"test: %@",nowDate);
        NSDateComponents *comps = [[NSDateComponents alloc] init];
        [comps setDay:27];
        [comps setMonth:9];
        [comps setYear:1988];
        NSCalendar *local = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
        NSDate *birthDay = [local dateFromComponents:comps];
        
        double difference = [now timeIntervalSinceDate:birthDay];
        double years = (((difference /60) /60) /24) /365;