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 the use of advanced programming skills, but spent most direct delivery to the port number of ways to realize, procedures relatively simple, intuitive and easy to understand beginners look.