① 设计和实现基于哈夫曼算法的编码和译码功能，系统功能包括：产生哈夫曼编码，输入电文进行编码生成码文，将码文译成电文，对输入电文和译文作对比等。 -① Design and Implementation of the algorithm based on Huffman coding and decoding functions, the system features include: generated Huffman code, enter the code to generate