//

//  SportProtocol.h

//  day17

#import <Foundation/Foundation.h>

@protocol SportProtocol <NSObject>

// 方法声明列表

- (void)playFootball;

- (void)playBasketball;

- (void)playBaseball;

@end

//

//  Person.h

//  day17

#import <Foundation/Foundation.h>

#import "SportProtocol.h"  //相当于拷贝了一份方法的声明

@interface Person : NSObject <SportProtocol>  //继承了协议，就有了协议里面所有方法的声明。继承实类默认就有实现，继承协议没有实现，

@end

//

//  Person.m

//  day17

#import "Person.h"

@implementation Person

- (void)playFootball

{

    NSLog(@"%s", __func__);

}

- (void)playBasketball

{

    NSLog(@"%s", __func__);

}

- (void)playBaseball

{

    NSLog(@"%s", __func__);

}

@end

//

//  main.m

//  day17

#import <Foundation/Foundation.h>

#import "Person.h"

#import "Student.h"

#import "Teacher.h"

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

    Person *p = [Person new];

    [p playFootball];

    [p playBasketball];

    [p playBaseball];

    Student *stu = [Student new];

    [stu playBaseball];

    Teacher *tea = [Teacher new];

    [tea playBasketball];

    return ;

}