部分日期格式的总结:
NSDateFormatter * dateFormatter = [[[NSDateFormatter alloc] init]autorelease];
[dateFormatter setAMSymbol:@"AM"];
[dateFormatter setPMSymbol:@"PM"];
[dateFormatter setDateFormat:@"dd/MM/yyyy hh:mmaaa"];
NSDate *date = [NSDate date];
NSString * s = [dateFormatter stringFromDate:date];
显示效果为:10/05/2010 03:49PM
下面附上几个格式:这个是从Cocoachina找来的:
yyyy:MM:dd G 'at' HH:mm:ss zzz
EEE, MMM d, "yy
h:mm a
hh 'o"clock' a,zzzz
K:mm a, z
yyyyy,MMMM.dd GGG hh:mm aaa 01996.july.10 AD 12:08 PM
下面是得到当前的年,月,日,时,分,秒:
NSCalendar *cal = [NSCalendar currentCalendar];
unsigned int unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit;
NSDateComponents *dd = [cal components:unitFlags fromDate:date];
int y = [dd year];
int m = [dd month];
int d = [dd day];
int h = [dd hour];
int m = [dd minute];
int s = [dd second];