给出了数字跑表的源代码，设计了分频模块，实现了真实的时间计数，通过这个工程的训练，能更好的了解Quartus II数字电路开发的过程。-Digital stopwatch given the source code, design the sub-frequency module, the realization of the true count of time, through this project the training, to better understand the Quart