这个题目已经通过多开发完成了对象方法和类方法!!!  怎么实现对象方法调用类方法 和 类方法调用对象方法.

/*

题目:   学生用电脑玩游戏：

一个学生类Person；

一个电脑类Computer;

你能想出多少种实现思路?

*/

#import <Foundation/Foundation.h>

#import "StudentPlayer.h"

#import "Computer.h"

int main(int argc, const char * argv[]) {

    @autoreleasepool {

        NSLog(@"学生 %@ 正在玩电脑游戏 %@",[StudentPlayer Student:@"孙胜"],[Computer gameName:@"LOL"]);      

        }

    return 0;

}

----------------------------------------------------------------------------

#import <Foundation/Foundation.h>

@interface Computer : NSObject

//{

//    NSString *_game;

//   

//}

+(NSString *)gameName:(NSString *)gameName;

//+(NSString *)gameName;

@end

----------------------------------------------------

#import "Computer.h"

//类方法

@implementation Computer

+(NSString *)gameName:(NSString *)gameName

{

    return gameName;   

}

@end

-------------------------------------------------------

#import <Foundation/Foundation.h>

#import "Computer.h"

//类方法

@interface StudentPlayer : NSObject

+(NSString *)Student:(NSString *)stuName;

@end

-----------------------------------------------------------

#import "StudentPlayer.h"

//类方法

@implementation StudentPlayer

+(NSString *)Student:(NSString *)stuName

{

    return stuName;

}

@end

这个题目已经通过多开发完成了对象方法和类方法!!!  怎么实现对象方法调用类方法 和 类方法调用对象方法.

/*

题目:   学生用电脑玩游戏：

一个学生类Person；

一个电脑类Computer;

你能想出多少种实现思路?

*/

#import <Foundation/Foundation.h>

#import "StudentPlayer.h"

#import "Computer.h"

int main(int argc, const char * argv[]) {

    @autoreleasepool {

        NSLog(@"学生 %@ 正在玩电脑游戏 %@",[StudentPlayer Student:@"孙胜"],[Computer gameName:@"LOL"]);      

        }

    return 0;

}

----------------------------------------------------------------------------

#import <Foundation/Foundation.h>

@interface Computer : NSObject

//{

//    NSString *_game;

//   

//}

+(NSString *)gameName:(NSString *)gameName;

//+(NSString *)gameName;

@end

----------------------------------------------------

#import "Computer.h"

//类方法

@implementation Computer

+(NSString *)gameName:(NSString *)gameName

{

    return gameName;   

}

@end

-------------------------------------------------------

#import <Foundation/Foundation.h>

#import "Computer.h"

//类方法

@interface StudentPlayer : NSObject

+(NSString *)Student:(NSString *)stuName;

@end

-----------------------------------------------------------

#import "StudentPlayer.h"

//类方法

@implementation StudentPlayer

+(NSString *)Student:(NSString *)stuName

{

    return stuName;

}

@end