好玩的呼啦啦，你们都来说试试看，能打开的-Fun flapping in the wind, you have to try it, can open.

数字钟verilog hdl数字钟数字钟 数字钟简易数字钟(This is a simple digital clock, the language is Verilog HDL, including buffeting and dividing frequency and other functions)