每月第一个星期二

Question

我想得到这个月的第一个星期二。我这样做 :

NSDate *today = [NSDate date];

NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
NSDateComponents *com = [calendar components:NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitWeekOfMonth|NSCalendarUnitDay|kCFCalendarUnitWeekday|NSCalendarUnitWeekdayOrdinal fromDate:today];
[com setWeekday:3];
[com setWeekdayOrdinal:1];

NSDate *firstTuesday = [calendar dateFromComponents:com];
NSLog(@"firstTuesday %@", firstTuesday);// firstTuesday 2015-10-22 22:00:00 +0000

你知道我做错了什么吗？谢谢

Answer 1

终于明白了，这是示例代码:

NSDate *today = [NSDate date];
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
NSDateComponents *todayCompoenents = [calendar components:NSCalendarUnitYear |NSCalendarUnitMonth  fromDate:today];

NSDateComponents *com = [[NSDateComponents alloc] init];

[com setYear:[todayCompoenents year]];
[com setMonth:[todayCompoenents month]];
[com setWeekday:3];
[com setWeekdayOrdinal:1];

NSDate *firstTusday = [calendar dateFromComponents:com];
NSLog(@"firstTusday %@", firstTusday);

每月第一个星期二

First Tuesday of the month

objective-c

nsdate