电梯模拟系统基本实现了电梯的正常运行所需要的各种功能，例如启动、上、下以及楼层的选择和楼层的显示。在启动时，我们没有特别的设置一个启动按钮，因为第一层的“上”按钮就起到了此功能，再特别添加一个“启动”按钮就显得冗余，当启动是，显示楼层为 “floor 1”。同时电梯里面的各个楼层均可以响应了。-Simulation system for the basic realization of the lift elevator required for the normal operation of various functions, such as start, the upper and lower floors, as well as the selection and display floors. At boot time, we do not have to set up a special start button, because the first line of " on"　button on the play of this function, and then add a special " start"　button has become redundant, when the start is that the show floor for the " floor 1. "　At the same time, the various floors inside the lift can be responded to.