iOS-获取当前时间的年、月、日、时、分、秒

//获取当前时间
02    NSDate *now = [NSDate date];
03    NSLog(@”now date is: %@”, now);
04
05    NSCalendar *calendar = [NSCalendar currentCalendar];
06    NSUInteger unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit;
07    NSDateComponents *dateComponent = [calendar components:unitFlags fromDate:now];
08     
09    int year = [dateComponent year];
10    int month = [dateComponent month];
11    int day = [dateComponent day];
12    int hour = [dateComponent hour];
13    int minute = [dateComponent minute];
14    int second = [dateComponent second];
15
16    NSLog(@”year is: %d”, year);
17    NSLog(@”month is: %d”, month);
18    NSLog(@”day is: %d”, day);
19    NSLog(@”hour is: %d”, hour);
20    NSLog(@”minute is: %d”, minute);
21    NSLog(@”second is: %d”, second);