模拟UNIX磁盘空间管理中使用的分组链接法。在内存中建立一个虚拟盘，模拟成组链接法，实现对该虚拟盘空间的管理

虚拟盘共60块，10块为一组，系统最多支持5个文件

可以显示文件对磁盘块的占用情况，当前空闲块的分布情况

-simulated UNIX disk space used in the management of a link France. In memory to establish a virtual disk to simulate the Links Group, realize that the virtual disk space management Virtual Disk total 60, 10 to a group, the greatest support system five documents show documents to disk blocks occupied, the current free distribution of the block