NSKeyedArchiver和NSKeyedUnarchiver

//        NSDictionary * dict=[[NSDictionary alloc]initWithObjectsAndKeys:@"one",@"1",@"two",@"2",@"three" ,@"3",nil];

//        //只能在特定的路径下写文件

//        [dict writeToFile:PATH atomically:YES];

//归档

        NSArray * array=[[NSArray alloc]initWithObjects:@"one",@"two",@"three", nil];

        NSDictionary * dict=[[NSDictionary alloc]initWithObjectsAndKeys:@"one",@"1",@"two",@"2",@"three" ,@"3", nil];

        NSMutableData * data=[[NSMutableData alloc]init];

        NSKeyedArchiver * archiver=[[NSKeyedArchiver alloc]initForWritingWithMutableData:data];

        

        [archiver encodeObject:array forKey:@"array"];

        [archiver encodeObject:dict forKey:@"dict"];

        [archiver finishEncoding];

        

        [data writeToFile:PATH atomically:YES];

        

  //解档

        NSData * data1=[[NSData alloc]initWithContentsOfFile:PATH];

        NSKeyedUnarchiver * unarchiver=[[NSKeyedUnarchiver alloc]initForReadingWithData:data1];

        NSArray * array1=[unarchiver decodeObjectForKey:@"array"];

        NSLog(@"%@",array1);