图管理磁盘存储空间.模拟用位示图管理磁盘的程序。先按照题目要求初始化磁盘状态，然后由用户输入要占用磁盘的哪一块，一共5次，程序在处理完后显示占用后的磁盘位示图。接着按照题目要求释放3块空间，并且显示释放以后的磁盘位-management plans disk storage space. Simulation Bitmap disk management procedures. First title in accordance with requirements of state disk initialization, and then by the user input to occupy a disk which, a total of five times. After the procedure shown in the occupied disk Bitmap. Then in accordance with the subject demanded the release of three space, and show that after the release of the disk spaces