1.　　建立一个结点，即 PCB 块包括用户标识域、状态域（执行、等待、就绪）、 link 域。　

2.　　建立三个队列（执行队列、就绪队列、等待队列）。　

3.　　根据进程状态转换实现对三个队列的具体操作。具体的驱动可以采用时间片算法或手动调度的形式完成三个状态之间的转换

4.　　用 switch 选择语句选择状态。　

5.　　按照自己的设定能完成所有的状态转换的运行（包括创建和运行结束）。

-1 create a node, i.e. PCB block includes a user identifier domain, domain (executive, waiting, ready), link domain.



2 to establish three cohort (execution queue, queue, waiting queue).



3 according to the state transition process of realization of the concrete operation of the three queues. The driver can use time slice scheduling algorithm or manually complete the form of conversion between the three state



4 using switch select statement selection state.



5 in accordance with their own set to complete all of the state transition of operation (including the end of creating and running).