优先数调度算法实现处理器调度，每个进程有一个进程控制块（ PCB）表示。进程控制块可以包含如下信息：进程名、优先数、需要运行时间、已用CPU时间、进程状态等等。 -The number of processor scheduling priority scheduling algorithm, each process has a process control block (PCB) said. Process control block can contain the following information: process name, priority number, need to run time, CPU time is used, the process state and so on.