你如何在Cocoa中提取当前日期的数量？

Question

如何在Cocoa中提取当前月份的数量？ 这就是我这样做但它返回的东西像309420938420422 .. 谢谢！

-(int)getNumberOfCurrentDay:(NSDate*)date_
{
    NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];

    NSDateComponents *comps = [gregorian components:NSMonthCalendarUnit fromDate:date_];
    NSInteger numberday = [comps day];

    NSLog(@"Number of the day %i", numberday);


    return numberday;
}

Answer 1

您需要使用： NSDayCalendarUnit

-(int)getNumberOfCurrentDay:(NSDate*)date_
{
    NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];

    NSDateComponents *comps = [gregorian components:NSDayCalendarUnit fromDate:date_];
    NSInteger numberday = [comps day];

    NSLog(@"Number of the day %d", numberday);


    return numberday;
}

Answer 2

尝试使用NSDayCalendarUnit代替NSMonthCalendarUnit。或者执行以下操作以获得更多（天，月，年，小时，分钟，秒等）：

int comp = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit;
NSDateComponents *theDateComponents = [gregorian components:comp fromDate:date_];
int day = [theDateComponents day];

希望有所帮助