Objective-C 基础：Time时间类

.h文件

#import <Foundation/Foundation.h>

@interface Time2 : NSObject

{

   int hour;

   int minute;

   int second;

    

}

-(void)setHour:(int)_h;

-(int)hour;

-(void)setMinute:(int)_m;

-(int)minute;

-(void)setSecond:(int)_s;

-(int)second;

@end

.m文件

#import <Foundation/Foundation.h>

@interface Time2 : NSObject

{

   int hour;

   int minute;

   int second;

    

}

-(void)setHour:(int)_h;

-(int)hour;

-(void)setMinute:(int)_m;

-(int)minute;

-(void)setSecond:(int)_s;

-(int)second;

@end

主函数

#import <Foundation/Foundation.h>

#import "Time2.h"

int main(int argc,constchar * argv[])

{

    @autoreleasepool {

        

       

       Time2 *time=[[Time2alloc]init];//申请一个time对象的内存空间

        

        [timesetHour:10];

        [timesetMinute:20];

        [timesetSecond:30];

            

       NSLog(@"%d:%d:%d",time.hour,time.minute,time.second);

        

    }

   return0;

}