4 
NSDate *today = [NSDate date];
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
[calendar setTimeZone:[NSTimeZone timeZoneWithName:@"GMT+2"]];

NSDateComponents *dateComponents = [calendar components:(NSDayCalendarUnit | NSWeekdayCalendarUnit) fromDate:today];    

NSInteger day = [dateComponents day];
NSInteger month = [dateComponents month];
NSInteger year = [dateComponents year];

 NSLog(@" %i %i %i ", day, month, year);

该代码显示“12 2147483647 2147483647”

我怎样才能得到月份和年份（整数）

如何添加/转发一天？（如果我们也是本月的第一天！）

谢谢你的关注:-)

4

2 回答 2

9 
NSCalendar *calendar= [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSCalendarUnit unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit |  NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit;
NSDate *date = [NSDate date];
NSDateComponents *dateComponents = [calendar components:unitFlags fromDate:date];

NSInteger year = [dateComponents year];
NSInteger month = [dateComponents month];
NSInteger day = [dateComponents day];
NSInteger hour = [dateComponents hour];
NSInteger minute = [dateComponents minute];
NSInteger second = [dateComponents second];

[calendar release];

希望这可以帮助

于 2011-04-12T11:24:45.763 回答
2

  1. 添加更多单位NSDayCalendarUnit | NSWeekdayCalendarUnit- 您不是要求月份或年份，因此它们是无效的！

  2. 添加/减去NSDateComponents配置为 1 天的对象和[NSCalendar dateByAddingComponents:toDate:options:]. 或者，并且可能同样正确，使用[NSDate dateWithTimeInterval:sinceDate:]

于 2011-04-12T10:59:25.067 回答