//
// 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

---

//
// Person.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 "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