一直使用的一个错误，记得把array release！！！！

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         NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];                  NSMutableArray *array = [dict objectForKey:@"key"];         if (array == nil) {             array = [[NSMutableArray alloc] init];             [dict setObject:array forKey:@"key"];             [array release];//千万记得Release         }         [array addObject:@"object"];