这是一个tc的安装程序，适合用tc的人，安装简单，运行也很简单。-This is a tc setup for people who use tc simple installation, operation is simple.

verilog做的流水灯，分频器做半秒的tc，流水灯每半秒流动一次 -verilog do water lights, dividers do half a second tc, light water flow once every half-second