Object-C 学习笔记(二十八)--- 归档(1)

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归档:是把数据持久化到本地,归档是其中的一样,数据库是一种持久化的归档,但是归档有一个特点,持久化到本地的数据是经过加密.不能够用特定的软件读看里面的内容.与文件操作最大的区别.

归档也叫做序列化,解档叫反序列化.

下面实例是把数组归档和解档:

////  main.m//  storeDemo1////  Created by 5016 on 13-12-18.//  Copyright (c) 2013年 dradon. All rights reserved.//#import <Foundation/Foundation.h>//归档-----序列化//数组归档void store(){    //1.获取路径    NSString *homePath = NSHomeDirectory();    NSString *targetPath = [homePath stringByAppendingPathComponent:@"Desktop/arr.archive"];    //2.准备数据    NSArray *arr = @[@002,@555,@"dragon",@"yeah"];    //3.归档    BOOL success = [NSKeyedArchiver archiveRootObject:arr toFile:targetPath];        if (success) {        NSLog(@"归档成功");    }    else    {        NSLog(@"归档失败");    }    }//解档-----反序列化//数组解档void readstroe(){    //1.获取路径    NSString *homePath = NSHomeDirectory();    NSString *targetPath = [homePath stringByAppendingPathComponent:@"Desktop/arr.archive"];    //2.解档成为数组    NSArray *unarr = [NSKeyedUnarchiver unarchiveObjectWithFile:targetPath];    NSLog(@"new arr=%@",unarr);}int main(int argc, const char * argv[]){    @autoreleasepool {        store();        readstroe();            }    return 0;}

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