根据输入的权值建立一棵哈夫曼树，并显示该树的结点序号、双亲结点、左/右孩子结点以及各结点所对应的哈夫曼编码。-Establish a Huffman tree, according to the weights of the input and displays the serial number of the nodes of the tree parent node, left/right child nodes, and each node corresponds to Huffman c