为Verilog Hdl代码，实现交通灯系统每个路口每次绿灯维持的时间是40 秒,黄灯为5 秒 ,左转灯10秒，红灯60秒-Code for the Verilog Hdl, to achieve traffic light system to maintain each intersection green time for each 40 seconds, yellow for 5 seconds, turn left at light for 10 seconds, the red lig

verilog 语言写的交通灯设计源代码，实现左转灯、红灯、绿灯、黄灯转换，并且提供手动控制按钮-verilog language source code for design of traffic lights, turn left to achieve lights, red light, green light, yellow light conversion, and provides manual control buttons