引用经典的哈夫曼编码方式，发送方能后读一段文字并按照哈夫曼编码方式编码并生成另一个文件，并且也有读密文还原源码的功能-Quoted classical Huffman encoding, send before and after the reading of a section of text encoded in accordance with the Huffman coding and generates another file, and also have read cipherte