OC10_数组的内存管理

//

//  main.m

//  OC10_数组的内存管理

//

//  Created by zhangxueming on 15/6/18.

//  Copyright (c) 2015年 zhangxueming. All rights reserved.

//



#import <Foundation/Foundation.h>

#import "Dog.h"



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

    @autoreleasepool {

        Dog *dog1 = [[Dog alloc] init];

        Dog *dog2 = [[Dog alloc] init];

        Dog *dog3 = [[Dog alloc] init];

        Dog *dog4 = [[Dog alloc] init];

        Dog *dog5 = [[Dog alloc] init];

        //往数组中添加对象, 对应对象的retainCount 值+1;

        NSLog(@"dog1 retainCount = %li", dog1.retainCount);

        NSMutableArray *dogs = [[NSMutableArray alloc] init];

        [dogs addObject:dog1];//dogs[0]-->dog1

        [dogs addObject:dog1];//dogs[1]-->dog1

        NSLog(@"dog1 retainCount = %li", dog1.retainCount);

        [dogs addObject:dog2];//dogs[2]-->dog2

        [dogs addObject:dog3];

        [dogs addObject:dog4];

        [dogs addObject:dog5];

        

        [dog1 release];

        [dog2 release];

        [dog3 release];

        [dog4 release];

        [dog5 release];

        

        NSLog(@"dog1 retainCount = %li", dog1.retainCount);

        

        //数组对象release 实际上是对数组中的每个一个元素 release 一次

        [dogs release];

        

        //NSLog(@"dog1 retainCount = %li", dog1.retainCount);

        

    }

    return 0;

}