1、根据用户指定的字符表和频度的实际统计数据建立Huffman树；

2、其中其叶子结点表示字符的权值及父母、左、右孩子等结点的信息；

3、其左右分支分别用代码0、1表示；

4、本系统的目的是为用户提供编/译码系统，根据用户输入的字符依字符集的权值进行编码保存； 5、根据接收到的编码进行译码；

6、输出其内容-1, according to user-specified character tables and frequency of the actual statistical data to establish Huffman tree; 2, in which the leaf node of the right to express character and the value of parents, left and right, such as child nodes of information; 3, around its branches were used code 0,1 said; 4, the Department of EC aims to provide users with encoding / decoding system, according to user input according to the characters of the character set weights encode preservation; 5, the received code decoding; 6, the output of its contents