//
// main.m
// OC_9练习
//
// Created by YIem on 15/12/4.
// Copyright (c) 2015年 www.yiem.net YIem博客. All rights reserved.
//

import <Foundation/Foundation.h>

import "Person.h"

import "ARCMOdel.h"

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

@autoreleasepool {

// 创建对象

    Person *p1 = [[Person alloc] initWithName:@"qwe" arr:@[@"asd"] age:10];
    [p1 release];
    // 遍历构造器
    Person *p2 = [Person personWithName:@"zxc" arr:@[@"rty"] age:20];
    // ARCModel
    ARCMOdel *m = [[ARCMOdel alloc] init];
    [m release];

   
    
    
    
    
}
return 0;

}

//
// ARCMOdel.h
// OC_9练习
//
// Created by YIem on 15/12/4.
// Copyright (c) 2015年 www.yiem.net YIem博客. All rights reserved.
//

import <Foundation/Foundation.h>

// ARC/MRC 混编
// ARC下使用MRC: -fno-objc-arc
// MRC下使用ARC: -fobjc-arc

@interface ARCMOdel : NSObject

@property (nonatomic, copy)
NSString *string;
@property (nonatomic, retain)
NSDictionary *dic;

@end

//
// ARCMOdel.m
// OC_9练习
//
// Created by YIem on 15/12/4.
// Copyright (c) 2015年 www.yiem.net YIem博客. All rights reserved.
//

import "ARCMOdel.h"

@implementation ARCMOdel

pragma mark - ARCsetter方法重写

(void)setString:(NSString *)string
{
if (_string != string) {
```
_string = string;
```
}
}
(void)setDic:(NSDictionary *)dic
{
if (_dic != dic) {
```
_dic = dic;
```
}
}

@end

//
// Person.h
// OC_9练习
//
// Created by YIem on 15/12/4.
// Copyright (c) 2015年 www.yiem.net YIem博客. All rights reserved.
//

import <Foundation/Foundation.h>

@interface Person : NSObject
@property (nonatomic, copy)
NSString *name;
@property (nonatomic, retain)
NSArray *arr;
@property (nonatomic, assign)
NSInteger age;
/// 初始化

(instancetype)initWithName:(NSString *)name

                     arr:(NSArray *)arr
                     age:(NSInteger)age;

///遍历构造器

(instancetype)personWithName:(NSString *)name

                       arr:(NSArray *)arr
                       age:(NSInteger)age;

@end

import "Person.h"

@implementation Person

pragma mark - dealloc方法

(void)dealloc
{

// retain/copy的属性 必须写在dealloc中 让对应的成员变量release
[_name release];
[_arr release];
[super dealloc];

}

pragma mark - 初始化

(instancetype)initWithName:(NSString )name arr:(NSArray )arr age:(NSInteger)age
{
// 使用setter方法赋值把要复制的内容引用计数 +1 防止提前释放
self = [super init];
if (self) {
```
self.name = name;
self.arr = arr;
self.age = age;
```
}
return self;
}

pragma mark - 遍历构造器

(instancetype)personWithName:(NSString )name arr:(NSArray )arr age:(NSInteger)age
{
Person *p = [[Person alloc] initWithName:name arr:arr age:age];
// 遍历构造器中使用autorelease平衡alloc
return [p autorelease];
}

pragma mark - 重写setter

(void)setName:(NSString *)name
{
// 1.判断成员变量中的内容和外部传人的内容是否是同一个
if (_name != name) {
```
// 2.release成员变量中的原数据
[_name release];
// 3.赋值新数据的同时 retain/copy新数据
_name = [name copy];
```
}
}
(void)setArr:(NSArray *)arr
{
if (_arr != arr) {
```
[_arr release];
_arr = [arr retain];
```
}
}
(void)setAge:(NSInteger)age
{
// 非对象直接赋值
_age = age;
}

@end