依据“先进先出”调度原则，并用队列加以实现，从而对CPU分时系统进行简单模拟。输入为用户个数和每个用户所要完成的任务及消费的CPU运行周期，在考虑到CPU申请延迟周期的情况下，输出CPU在运行过程中每个周期的工作状态，正在使用CPU的用户以及等待使用的用户。-Based on " FIFO"　scheduling principles, and use a queue to be achieved, and thus a simple simulation of CPU time-sharing system. Enter the number of users and each user to complete the tasks and run consumption of CPU cycles, taking into account CPU cycles for the case of delay, the output during operation of each CPU cycle, the working state of the user as well as the CPU is being used wait for the use of users.