说明：  处理器调度算法： 要求：编写程序来模拟计划 （1）过程调度算法包括：FCFS算法、RR算法、SJF算法和动态优先级算法。 （2）可以选择流程的数量，每个流程都由过程控制块PCB标识。
(Processor scheduling algorithm: requirements:write program to simulate the scheduling. (1)Process scheduling algorithms include:FCFS algorithm,RR algorithm, SJF algorithm and dynamic priority algorithm. (2)The number of processes can be selected, and each process is identified by a process control block PCB.)