autorelease应用
2016-12-13 10:03 supper_Ho 阅读(140) 评论(0) 编辑 收藏 举报//
// 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
