数据结构实验：设计一个基于哈夫曼树的数据压缩程序，根据给定的待压缩文件中字符出现的频率建立相应哈夫曼树，构造哈夫曼编码表，在此基础上可以对待压缩文件进行压缩（即编码），同时可以对压缩后的二进制编码文件进行解压（即译码）-Experimental data structure: a design based on Huffman data compression program, to establish the corresponding Huffman tree based on the frequency of a given file to be compressed characters appear constructed Huffman coding table, on this basis, can be treated archive compression (ie coding), while binary-coded compressed file to decompress (ie decoding)