FCFS算法每次从就绪队列中选择一个最先进入该队列的进程，为之分配CPU，使之运行。该进程一直运行道完成或被某事件阻塞后，才放弃CPU。本程序模拟了FCFS算法。-FCFS algorithm for each queue　ready to　a first cohort to enter the process, which the allocation of CPU, to make it run. Run Road, the process has been completed or obstruction of an event after giving up CPU. This procedure simulated FCFS algorithm.