这是电子钟的的设计，用汇编做的，由于时间比较紧，所以还有可以改进的地方，但是对于才做的同学比较有帮助！用的硬件是dvcc唐都仪器-This is the electronic clock design, with the compilation done relatively tight because of the time, so there can be improvements, but only to do more to help students! Hardware is used