简单的led流水灯，刚开始学单片机，真的好难啊，但这是一个好的开始，我会坚持下去的，自己的第一个单片机程序，哈哈哈哈哈哈哈(ledSimple LED water lamp, just started learning microcontroller, it's really hard, but this is a good start. I will stick to it. My first microcontroller program is hahahahahahaha.)