获取当前月份有多少天
NSCalendar *calendar1 = nil;
if ([UIDevice currentDevice].systemVersion.doubleValue >= 8.0) {
calendar1 = [NSCalendar calendarWithIdentifier:NSCalendarIdentifierGregorian];
} else {
calendar1 = [NSCalendar currentCalendar];
}
NSRange rangeMonth = [calendar1 rangeOfUnit:NSCalendarUnitDay inUnit:NSCalendarUnitMonth forDate:[NSDate date]];
NSUInteger numberOfDaysInMonth = rangeMonth.length;
NSLog(@"当前月份 %@ 天",@(numberOfDaysInMonth));
获取当前年份和月份和天数
NSCalendar *calendar = [[NSCalendar alloc]initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
unsigned unitFlags = NSCalendarUnitYear |
NSCalendarUnitMonth |
NSCalendarUnitDay |
NSCalendarUnitHour |
NSCalendarUnitMinute|
NSCalendarUnitSecond|
NSCalendarUnitWeekday;
NSDateComponents* components = [calendar components:unitFlags fromDate:[NSDate date]];
NSInteger iCurYear = [components year]; //当前的年份
NSInteger iCurMonth = [components month]; //当前的月份
NSInteger iCurDay = [components day]; // 当前的号数
