IOS获取当前年月日 时分秒
NSDate *currentDate = [NSDate date];
NSCalendar *currentCalendar = [NSCalendar currentCalendar];
//IOS 8 之后
NSUInteger integer = NSCalendarUnitYear | NSCalendarUnitMonth |NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond;
NSDateComponents *dataCom = [currentCalendar components:integer fromDate:currentDate];
NSInteger year = [dataCom year];
NSInteger month = [dataCom month];
NSInteger day = [dataCom day];
NSInteger hour = [dataCom hour];
NSInteger minute = [dataCom minute];
NSInteger second = [dataCom second];
NSLog(@"year===%ld",year);
NSLog(@"month===%ld",month);
NSLog(@"day===%ld",day);
NSLog(@"hour===%ld",hour);
NSLog(@"minute===%ld",minute);
NSLog(@"second===%ld",second);