此代码为哈弗曼编码，主要功能是输入结点数以及权值，构造出哈夫曼树，并且把构造结果输出到屏幕，结果会显示哈夫曼树的左孩子和右孩子以及双亲节点等-The code is Felicity Huffman coding, the main function is to enter a nodal points and weights, construct a Huffman tree, and the result is output to the screen structure, results