基于哈夫曼编码的文本文件压缩分析与研究

Analysis and Research of Text File Compression Based on Huffman Coding

数据压缩在信息迅速增长的时代显得越来越重要,信息在存储、传输等过程经常需要压缩。简单介绍了哈夫曼编码的基本原理和方法,提出利用哈夫曼算法进行文本文件压缩的方法,并用C语言设计开发了文本文件压缩程序,结合RAR算法对文本文件提出二次压缩。同时分析了该二次压缩方法的劣略性及与一次压缩的比较、适用场合等。

Data compression is more and more important in the information era of rapid growth,Information often need be compressed on storage and transmission process.The basic principles and methods of Huffman coding are simply introduced,method of using Huffman algorithm for compressing text file is put forward,using C language design program of text file compression,Combining RAR algorithm,method of text file twice compression is proposed.Also the advantages and disadvantages of method of twice compression are analyzed,what twice compression compare to once compression are analysed,applicable occasions of twice compression are analyzed,etc.