说明：  一个小型的嵌入式文件系统，好多同学都需要设计的一类，用户界面是命令行界面，并且有几个命令指令，1.创建文件同时输入文件内容。2.输出文件内容。3.删除文件。4.查找文件。5.陈列目录。6.磁盘格式化。7.磁盘整理。8.显示磁盘块分布状态。9.显示磁盘块存储情况。0.退出系统。
(A small embedded file system, many students need to design a class, the user interface is a command-line interface, and there are several command instruction, 1. Create a file and import the contents of the file. 2. Output file contents. 3. Delete files. 4. Locate the file. 5. Display directories. 6. Disk Format. 7. Defrag. 8. Show disk block distribution. 9. Shows the disk block storage conditions. 0. Exit the system.)