本次实习，是通过C语言模拟文件系统编写简单基本的文件操作，包括向磁盘写入文件，读出文件内容，删除文件，显示文件列表和向用户提供使用界面。其中用户界面只是在DOS下的简单界面，程序的重点还是在文件系统功能的实现上。主要技术在建立一个虚拟磁盘，实现输入输出文件与磁盘的交互性。还有文件在磁盘中空间的分配。-The internship is through the C language simulation of the file system to prepare a simple basic file operations, including writes to the disk file, read out the contents of the documents, delete documents to show the file list and to provide users with the use of the interface. Which user interface is simple in DOS interface, the focus of the procedure or function in the file system realization. The main technology in the creation of a virtual disk, to achieve input and output documents and interactive disk. There are files in the disk space allocation.