1）程序主界面可选择进程调度算法进行演示，其中调度算法包括：时间片轮转法，短作业优先算法，动态优先级算法。

2）然后进入子界面可选择进程数量和输入进程运行所需要的时间。

3）每个进程的优先数由随机函数产生且优先数随等待时间而变化，执行并显示结果。

-1) The program can choose the main interface shows the process of scheduling algorithm, scheduling algorithm which includes: Round-Robin time slice, short job first algorithm, dynamic priority algorithm. 2) and then choose to process into the sub-interface number and enter the time required to run the process. 3) the priority of each process, the number of priority by the random function and the number of changes with the wait time, execute and display the results.