这是一个数字时钟的数字逻辑电路，整个工程打包上传，时钟可以计时、校时、整点报时、定时闹钟。使用电路图实现的。在quatarsII里面仿真的并且下载到DE2板上运行过。-This is a digital clock digital logic circuits, the whole project package upload, the clock could be time, school hours, the whole point timekeeping, timing alarm clo