八路发光二极管轮流点亮的实验，也就是通常所说的跑马灯实验.软件编程设计，我们没有采用高深的编程技巧，而是用了最直接的向端口送数的办法来实现，程序比较简单,而且初学者看起来直观易懂。 -Eight-way light-emitting diode light rotation experiment, which is commonly referred to as experimental Marquee. Software programming design, we do not have t