[iOS]取得當月有多少天
- (NSInteger)getNumberOfDaysInMonth
{
NSCalendar * calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
NSDate * currentDate = [NSDate date];
NSRange range = [calendar rangeOfUnit:NSCalendarUnitDay
inUnit: NSCalendarUnitMonth
forDate:currentDate];
return range.length;
}
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