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NSDateComponents 的基本使用以及…

2014-01-23 17:26 218 查看
NSDateComponents与NSDate 相互转换

NSDateComponents *comps = [[NSDateComponents alloc] init];
[comps setDay:6];
[comps setMonth:5];
[comps setYear:2004];
NSCalendar *gregorian = [[NSCalendar alloc]
initWithCalendarIdentifier:NSGregorianCalendar];
NSDate *date = [gregorian dateFromComponents:comps];
[comps release];
NSDateComponents *weekdayComponents =
[gregorian components:NSWeekdayCalendarUnit fromDate:date];
int weekday = [weekdayComponents weekday];
NSDate基本用法

Assume 1308847489 is # of seconds since 1970.

NSDate
*nd = [NSDate dateWithTimeIntervalSince1970:1308847489];

NSDateFormatter
*dateFormat = [[NSDateFormatter alloc] init];

[dateFormat
setDateFormat:@"yyyy/MM/dd"];

NSString
*dateString = [dateFormat stringFromDate:nd];

NSLog(@"date:
%@", dateString);

[dateFormat
release];
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