采用LHARC的算法，LHARC采用字符串自适应压缩与单个字符的限长变化编码压缩相结合的方法，对文件进行双重压缩，尽可能地减少了冗余，基本压缩原理是，将待压缩文件看作是字符流(字节流)，将其中的冗余信息分成同一字符的离散出现和字符串的重复出现。

压缩率：压缩后的大小与内容的重复性有关，重复的内容越多压缩率越大，对短文本的压缩率一般在10 左右。-The LHARC the algorithm LHARC string adaptive compression method of combining compression with a single character limit length changes in coding, double compression of the file, minimize redundancy basic compression principle, will be compressed files to see as a character stream (byte stream), the redundant information is divided into the same character discrete appearance and the string repeated. Compression ratio: The size and content of the compressed repeatability on duplicate content, the more the greater the compression rate, compression ratio of the short text in about 10 .