一个VERILOG编的电梯模拟程序，有一点小问题，要的话去修改一下。-The elevator made a Verilog simulation program, it is a small problem, it is necessary to so to make some corrections.

用Verilog代码进行电路设计，并在指定可编程FGPA芯片上实现电梯控制器的功能，要能够对多个楼层的请求作出判断。用七段显示器显示当前楼层，led灯表示当前电梯是上还是下状态。-Performed using Verilog code circuit design and realization of the function is specified on the elevator controller chip programmable FGPA, to be able to make a

实现电梯控制，一到七楼，通过led实现层数，数码管显示数字。(Through simulating elevator hoistway information, elevator controller is tested and assessed)