说明：  进程管理设计进程控制块PCB表结构，适用于优先数调度算法调度算法。 ②建立进程就绪队列。 ③编制进程调度算法：优先数调度
(process management design process control block PCB table structure, applicable to a few priority scheduling algorithm scheduling algorithm. create a process in place cohort. preparation process scheduling algorithm : a few priority scheduling)