调度算法

说明：  这是操作系统实验的调度算法,包含时间片轮转法,抢占式优先权算法,非抢占式优先权算法,先来先服务算法,短作业(进程)优先调度算法.
(This is the experimental operating system scheduling algorithms, including time-rotate, Preemptive priority algorithm, non-preemptive priority algorithm, first-come first-serve algorithm, short operations (process), priority scheduling algorithm.)