说明：  Verilog 电梯控制器设计 设计一个八层楼房自动电梯控制器，用八个 LED显示出来电梯行进过程，并有数码管显示出来电梯当前所在楼层位置，在每层电梯入口处设有请求按钮开关，请求按钮按下则相应楼层的的LED 亮亮。 用 CLK脉冲控制电梯运动，每来一个 CLK脉冲电梯升（降）一层。电梯到达有请求的楼层后，该层次的指示灯灭，电梯门打开（开门指示灯亮），开门 5 秒后，电梯门自动关闭，电梯继续运行。
(Automatic elevator controller Verilog elevator controller design design an eight-story buildings with eight LED display out of the elevator moving process, and a digital display out of the elevator where the floor position with Request button switch on each elevator entrance, the request button is pressed the corresponding floors LED bright. CLK pulse to control the elevator movement, each to a CLK pulse elevator up (down) layer. The elevator to reach the requested floor, the level of the indicator off, the elevator door open (door lights), open the door five seconds after the elevator doors close automatically, the elevator continues to run.)