能根据不同的调度算法算出每个作业的周转时间和带权周转时间，并通过一组作业算出系统的平均周转时间和平均带权周转时间，比较各种算法的优缺点-According to different scheduling algorithms to calculate the turnaround time for each operation and take the right turn-around time, and through a group of operating system calculat