大文件管理，服务器端网页快照代码，有文件分级压缩存储的思想，也可以用来管理二进制文件

大文件管理，服务器端网页快照代码，有文件分级压缩存储的思想，也可以用来管理二进制文件- The big document management, the server end homepage snapshot code, has the document to grade the thought which the compression saves, also may use for to manage the binary file