OC 2_システムプロトコルを使う

//

//  Dog.h

//  OC2_      

//

//  Created by zhangxueming on 15/6/24.

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

//



#import <Foundation/Foundation.h>



@interface Dog : NSObject <NSCoding>



@property (copy, nonatomic)NSString *name;

@property (assign, nonatomic)NSInteger age;



@end







//

//  Dog.m

//  OC2_      

//

//  Created by zhangxueming on 15/6/24.

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

//



#import "Dog.h"



@implementation Dog



- (void)encodeWithCoder:(NSCoder *)aCoder

{

    //            ,                

    //[super encodeWithCoder:aCoder];

    [aCoder encodeObject:self.name forKey:@"name"];

    [aCoder encodeInteger:self.age forKey:@"age"];

}

- (id)initWithCoder:(NSCoder *)aDecoder

{

    //            ,          

    //self = [super initWithCoder:aDecoder];

    if (self = [super init]) {

        self.name = [aDecoder decodeObjectForKey:@"name"];

        self.age = [aDecoder decodeIntegerForKey:@"age"];

    }

    return self;

}



- (NSString *)description

{

    return [NSString stringWithFormat:@"name = %@ age = %li",_name, _age];

}

@end

//

//  main.m

//  OC2_      

//

//  Created by zhangxueming on 15/6/24.

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

//



#import <Foundation/Foundation.h>

#import "Dog.h"



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

    @autoreleasepool {

#if 0

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

        xiaoBai.name = @"  ";

        xiaoBai.age = 12;

        

        BOOL ret = [NSKeyedArchiver archiveRootObject:xiaoBai toFile:@"/Users/zhangxueming/Desktop/Test/dog.txt"];

        if (ret) {

            NSLog(@"    ");

        }

        else

        {

            NSLog(@"    ");

        }

#else

       Dog *dog=[NSKeyedUnarchiver unarchiveObjectWithFile:@"/Users/zhangxueming/Desktop/Test/dog.txt"];

        if (dog) {

            NSLog(@"%@", dog);

        }

        

#endif

    }

    return 0;

}