从一般的角度看好像没有必要定义文件系统，但是游戏的数据为了保密(特别是那

些资源文件:游戏图片、游戏音乐、shader脚本等)，可能把所有的文件打包在一个文

件中，那么我们读取这个文件的时候，可以把它看成一个文件系统，因为其格式固定，

也有文件目录，文件数据等(例如n勺。-From the general point of view does not seem necessary to define the file system, but the game data in order to confidentiality (in particular, that

These resource files: the game pictures, game music, shader scr ipts, etc.), may put all the files packaged in a text

Incident, then we read this document, it can be seen as a file system, because its format is fixed,

Also file directory, file data, etc. (for example, n spoon