LZMA压缩与解压原理是什么？
2012-01-19 20:07:05   来源：   点击：

1 个答案

• 答案 1：

  7zip用的是LZ77算法。其基本描述就是：Searches for repeated occurrence of same strings and replaces such strings by a code pointing back in the data stream / file to a location where the same string has previously occurred, and including the length of the matching string. Mostly used together with Huffman in the Deflate algorithm.简单的说就是匹配出重复出现的字符串，然后用偏移+长度的方法表示，可以结合Huffman和Deflate使用。