字符界面下实现的文件管理系统 用一个文件模拟磁盘操作

模拟文件管理系统，实现文件的创建，删除，修改等-Simulation of document management systems, file creation, deletion, modification, etc.

模拟文件管理系统，实现以下功能：创建文件、 删除文件、删除目录、显示目录、创建目录-Simulation of document management systems, to achieve the following functions: to create documents, delete files, delete the directory, display directory, create a directory