本程序使用C++编写，在VC2005上调试，完成了文件的读取，文件字符的统计以及压缩率的显示，哈夫曼树的建立，哈夫曼编码的实现，文件转换为哈夫曼编码成为压缩文件以及文件从压缩状态进行解码。并且以对话框的形式和用户交流，程序方便实用，既可以对文本进行压缩，有可以对图像进行压缩，效果都不错。-This procedure using C++ Prepared in VC2005 debug completed documents to read, document characters as well as the compression ratio statistics indicate that the establishment of Huffman tree, the realization of Huffman coding, document conversion Hough Cayman coding become compressed file as well as files from the compressed state decoding. And in the form of dialog box and user exchange, the program convenient and practical, either for text compression, there can be image compression, effects are good.