说明：  模拟电梯运行设计一个易于理解的界面，动态显示各梯的载客与运行情况(上、下或停止)，动态显示各楼层的人员停留情况与要求乘梯情况；动态显示从仿真开始到目前的时间。
(Simulated elevator operation to design a easy to understand interface, dynamic display of the ladder with the operation of the passenger (up, down or stop), dynamic display of personnel on each floor by ladder and requirements of the situation stays situation dynamic display from the beginning of the simulation to the current时间.)