//
// Cat.h
// OC7_代理的基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface Cat : NSObject
- (
void)bark;
@end
//
// Cat.m
// OC7_代理的基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "Cat.h"
@implementation Cat
- (
void)bark
{
NSLog(@"Miao miao miao ...");
}
@end
//
// Dog.h
// OC7_代理 的基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface Dog : NSObject
- (
void)bark;
@end
//
// Dog.m
// OC7_代理的基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "Dog.h"
@implementation Dog
- (
void)bark
{
NSLog(@"Wang wang wang ...");
}
@end
//
// Person.h
// OC7_代理的基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface Person : NSObject
{
id _delegate;
}
@property (retain,nonatomic)id delegate;
- (
void)go;
@end
//
// Person.m
// OC7_代理的基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "Person.h"
#import "Dog.h"
#import "Cat.h"
@implementation Person
- (
void)go
{
[_delegate bark];
}
//- (void)dealloc
//{
// [_delegate release];
// [super dealloc];
//}
@end
//
// main.m
// OC7_代理的基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "Person.h"
#import "Dog.h"
#import "Cat.h"
int main(
int argc,
const char *
argv[]) {
@autoreleasepool {
// insert code here...
//NSLog(@"Hello, World!");
Person *xiaoXin =
[[Person alloc] init];
Dog *dog =
[[Dog alloc] init];
xiaoXin.delegate =
dog;
[xiaoXin go];
Cat *cat =
[[Cat alloc] init];
xiaoXin.delegate =
cat;
[xiaoXin go];
}
return 0;
}
转载于:https://www.cnblogs.com/0515offer/p/4598549.html
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