day07-03-指定对象使用属性

Objective-c

//  main.m
//  指定对象使用属性
//
//  Created by Aaron on 15/7/9.
//  Copyright (c) 2015年 Aaron. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "Person.h"
#import "Animal.h"
int main(int argc, const char * argv[]) {
    @autoreleasepool {
        Person *p = [[Person alloc] init];
        Tool *t = [[Tool alloc] init];
        p.tool = t;
        p.tool.knif = @"小李飞刀";
        NSLog(@"p.tool.knif--->%@",p.tool.knif);
        Animal *aniaml = [[Animal alloc] init];
        aniaml.tool = t;
        aniaml.tool.knif = @"....";
        NSLog(@"aniaml.tool.knif--->%@",aniaml.tool.knif);
    }
    return 0;
}

#import <Foundation/Foundation.h>
#import "Tool.h"
@interface Animal : NSObject
@property (nonatomic,retain) Tool *tool;
@end

#import "Animal.h"
@implementation Animal
@end

#import <Foundation/Foundation.h>
@interface Tool : NSObject
@end

#import "Tool.h"
@interface Tool ()
@property (nonatomic,copy) NSString *knif;
@end
@implementation Tool
@end

#import <Foundation/Foundation.h>
#import "Tool.h"
@interface Person : NSObject
@property (nonatomic,retain) Tool *tool;
@end
@interface Tool (PersonUse)
@property (nonatomic,copy) NSString *knif;
@end

#import "Person.h"
@implementation Person
@end