通过修改单位时间到达量\lambda，服务窗口数r，服务效率\mu等排队论经典参数，观察在不同参数下的等待时间与窗口使用效率(By modifying the classical parameters of queuing theory, such as modifying the arrival time of unit time \lambda, the number of service windows r, and the service efficiency \mu, we observe the waiting time and the efficiency of window usage under different parameters.)