template <typename ElemType>
class HuffmanTree:public SeqTree<ElemType>
{
    public:
        void display();
        void displayList();
        void dispalyTree();
        void createHuffmanInsideNode();
        void createHuffmanSeqTree();
        void huffmanCoding();
        int HuffmanSqListStatus();
        void inputHuffmanLeafList();
        bool isHuffmanSqTreeEmpty();
    private:
        MyHuffmanTreeSqList huffSqList;
        MySeqTree<EleType> huffSqTree;
};