一行代碼搞定,示例代碼如下:
NSDate *date = [NSDate date];
NSRange daysInLastMonth = [[NSCalendar currentCalendar] rangeOfUnit:NSCalendarUnitDay inUnit:NSCalendarUnitMonth forDate:date];
// dayCountOfThisMonth就是date月份的天數(shù)
NSInteger dayCountOfThisMonth = daysInLastMonth.length;
