平衡二叉树操作的演示，利用平衡二叉树实现一个动态查找表。-Demonstration of a balanced binary tree operation, using a balanced binary tree to achieve a dynamic look-up table.

利用得到的权值构建huffman树、并输出每个字符对应的huffman编码，另外动态演示该哈夫曼树的生成过程。-Right to use the output value to construct the Huffman tree, and each character corresponding Huffman encoding, and dynamic display the generation process of the Huffman tree .