构建一棵树形结构的文件系统,要求程序模拟简单的dos文件系统的命令功能

Cd：类似dos的cd命令

Edit:创建文件

Del: 删除文件

Rd:删除目录

Dir:显示目录

Md:创建目录

-Build a tree-structured file system, and program to simulate the function of simple dos file system commands

Cd: similar to the dos cd command

Edit: Create file

Del: Delete file

Rd: delete directory

Dir: display directory

Md: created the directory