autorelease应用

//

//  main.m

//  02-autorelease应用

//

//  Created by apple on 14-3-18.

//  Copyright (c) 2014年 apple. All rights reserved.

//

#import <Foundation/Foundation.h>

#import "Chief.h"

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

{

@autoreleasepool {

/*

Chief * chi  = [[Chief alloc] init];

Food * food = [chi makeFood];;

NSLog(@"%@",food.name);//[nil name];

[chi release];

*/

Chief * chi = [Chief chief];

Food * food = [chi chiefMakeFood];

NSLog(@"%@",food.name);

NSString * name = [NSString stringWithFormat:@"%@",@"施瓦辛格"];//都是autorelease

NSLog(@"%@",name);

}

return 0;

}

//

//  Chief.m

//  01-autorelease基本概念

//

//  Created by apple on 14-3-18.

//  Copyright (c) 2014年 apple. All rights reserved.

//

#import "Chief.h"

@implementation Chief

- (void)dealloc

{

[super dealloc];

NSLog(@"厨师被回收了");

}

+ (Chief *)chief

{

/*

Chief * chi = nil;

chi = [[Chief alloc] init];

//    [chi release];

[chi autorelease];

*/

Chief * chi = [[self alloc] init];

return [chi autorelease];

}

- (Food *)chiefMakeFood

{

//如果在方法中创建一个对象,最好给我初始化为nil,防止出现野指针错误

// 1

Food * food = [[Food alloc] init];

food.name = @"凑豆乳";

//    // 0

//    [food release];

[food autorelease];

return food;

}

@end