基于哈夫曼树的文件压缩/解压程序c++源代码程序-Huffman tree based file compression/extracting program c++ source code program

用哈夫曼编码进行文件压缩与解压， 通过输入文件名来计算字符种类与频数来计算权值-Huffman coding with file compression and decompression, the file name by entering the type and frequency to calculate the number of characters to calculate the weights