以前为研究加解密码算法,曾分析了LZ77算法,但觉得所研究的例子压缩文件大小存在限制,所以就着手改进了其算法,使其支持大文件压缩和解压.-Previous study solutions for cryptographic algorithms, has analyzed the LZ77 algorithm, but I studied the existence of examples of compressed file size limit, so working to improve