设系统只有一个CPU，作业提交时间从0开始计时，第1个作业在时刻0提交，以后每隔一时间间隔(随机数)提交一作业。运行作业所需CPU时间也是随机数。试编一模拟程序，统计一个工作日 (8小时)内，作业从提交到完成的平均周转时间和系统的吞吐量(处理的作业数)。-Based system is only one CPU, the operating time from 0 to submit start running, the first operation at a time 0 submitted one after every time interval (random number) to the one operation. CPU time required to run the operation is also a random number. One simulated trial procedure, statistics on a working day (8 hours), the operation from the submission to the completion of the average turnaround time and system throughput (the number of treatment operations).