说明：  LZ77压缩算法是一种无损数据压缩算法。该算法是大多数 LZ 算法变体如 LZW、LZSS 以及其它一些压缩算法的基础。是基于字典的编码器。
(LZ77 compression algorithm is a lossless data compression algorithm. The algorithm is most LZ algorithm variants, such as LZW, LZSS compression algorithm, as well as some other basis. Is based on the dictionary encoder.)