如何获得给定年份的周数(How to get the number of weeks from given year)

如何获得给定年份的周数(How to get the number of weeks from given year)

我已经成功检索了一个星期的数字，但现在我想知道给定年份中有多少个星期。

我怎么做？

I have successfully retrieved a week number from a date, but now I want to get how many weeks are in a given year.

How do I do that?

最满意答案

您可以使用NSCalendar和NSDateComponents获取周数

- (NSInteger) getNumberOfWeeks : (NSDate *) fromDate { NSCalendar *cal = [NSCalendar currentCalendar]; NSDateComponents *components = [cal components:NSCalendarUnitWeekOfYear fromDate:fromDate]; return [components weekOfYear]; }

此方法将返回从12月31日到您在此函数中传递的日期的周数。

You can get the number of Weeks using NSCalendar and NSDateComponents

- (NSInteger) getNumberOfWeeks : (NSDate *) fromDate { NSCalendar *cal = [NSCalendar currentCalendar]; NSDateComponents *components = [cal components:NSCalendarUnitWeekOfYear fromDate:fromDate]; return [components weekOfYear]; }

This method will return number of week from December 31 to the date which you pass in this function.