基于凌阳61板的双向跑马灯，程序首先由左至右依次点亮跑马灯，之后全熄灭，再由右至左依次点亮，之后全熄灭，经过两个CP 变为双向跑马灯，相遇后返回.-Bidirectional Marquee Sunplus 61 board, the program first marquee lit from left to right, then the whole off, and then turn lit from right to left, after which the whole is off