NSDate
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- //得到当前的日期
- NSDate *date = [NSDate date];
- NSLog(@"date:%@",date);
- //得到(24 * 60 * 60)即24小时之前的日期,dateWithTimeIntervalSinceNow:
- NSDate *yesterday = [NSDate dateWithTimeIntervalSinceNow: -(24 * 60 * 60)];
- NSLog(@"yesterday:%@",yesterday);
- NSDateFormatter *formatter =[[[NSDateFormatter alloc] init] autorelease];
- NSDate *date = [NSDate date];
- [formatter setTimeStyle:NSDateFormatterMediumStyle];
- NSCalendar *calendar = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];
- NSDateComponents *comps = [[[NSDateComponents alloc] init] autorelease];
- NSInteger unitFlags = NSYearCalendarUnit |
- NSMonthCalendarUnit |
- NSDayCalendarUnit |
- NSWeekdayCalendarUnit |
- NSHourCalendarUnit |
- NSMinuteCalendarUnit |
- NSSecondCalendarUnit;
- //int week=0;
- comps = [calendar components:unitFlags fromDate:date];
- int week = [comps weekday];
- int year=[comps year];
- int month = [comps month];
- int day = [comps day];
- //[formatter setDateStyle:NSDateFormatterMediumStyle];
- //This sets the label with the updated time.
- int hour = [comps hour];
- int min = [comps minute];
- int sec = [comps second];
- NSLog(@"week%d",week);
- NSLog(@"year%d",year);
- NSLog(@"month%d",month);
- NSLog(@"day%d",day);
- NSLog(@"hour%d",hour);
- NSLog(@"min%d",min);
- NSLog(@"sec%d",sec);
- //得到毫秒
- NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
- [dateFormatter setDateStyle:NSDateFormatterMediumStyle];
- [dateFormatter setTimeStyle:NSDateFormatterShortStyle];
- //[dateFormatter setDateFormat:@"hh:mm:ss"]
- [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss.SSS"];
- NSLog(@"Date%@", [dateFormatter stringFromDate:[NSDate date]]);
- [dateFormatter release];
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