歸檔 反歸檔

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// 歸檔，反歸檔
        NSMutableString * str1 = [[NSMutableString alloc] initWithFormat:@"str1"];
        NSMutableString * str2 = [[NSMutableString alloc] initWithFormat:@"str2"];
        NSMutableString * str3 = [[NSMutableString alloc] initWithFormat:@"str3"];
        
        
        NSMutableArray * arr1 = [[NSMutableArray alloc] initWithObjects:str1,str2,str3, nil];
        
        [str1 release];
        [str2 release];
        
        [str3 release];
        
        // 序列化
        NSData* data = [NSKeyedArchiver archivedDataWithRootObject:arr1];
        // 反序列化
        NSArray* arr2 = [NSKeyedUnarchiver unarchiveObjectWithData:data];
        NSLog(@"arr1 = %ld,%@,%p",arr1.retainCount,arr1,arr1);
        NSLog(@"arr2 = %ld,%@,%p",arr2.retainCount,arr2,arr2);
        
        
        /*
         2013-09-12 11:31:47.187 KVCTest[6711:303] arr1 = 1,(
         str1,
         str2,
         str3
         ),0x10010ab80
         2013-09-12 11:31:47.190 KVCTest[6711:303] arr2 = 1,(
         str1,
         str2,
         str3
         ),0x10010e180
        
        */