根据哈夫曼算法，建立哈夫曼树时，可以将哈夫曼树定义为一个结构型的一维数组HuffTree，保存哈夫曼树中各结点的信息，每个结点包括：权值、左孩子、右孩子、双亲-Huffman algorithm Huffman tree is created, the Huffman tree is defined as a structure of one-dimensional array HuffTree, save the information of Huffman tree nodes, each node including: the right valueleft child and right child, parents