这个是我学习操作系统时做的实验，主要是磁盘调度算法的实现，其中还包括老师实验要求和目的。不保证完全正确，大家参考下还是很有价值的-This is my operating system to learn to do experiments, mainly disk scheduling algorithm, which also includes the teacher test requirements and objectives. Does not guarantee completely correct, we refer to the still great value