利用哈夫曼树的构造原理，可以对字符进行编码，并且可以对已 经编译好的代码进行译码，并且包括进行显示输出和文件保存，文件存储。 -Huffman tree constructed using the principle can encode characters, and may have been compiled code decoding, and includes display output and save the file, file storage.