功能:数码管动态显示实验 为了有更多实用的实验程序供大家学习，部分程序参考网上的资源, 在此谢谢这些无私奉献的朋友-Features: dynamic display of digital tube experiments in order to have more practical for them to learn from the experimental procedures, some of the procedures refer to online resources, would like to thank these selfless friend