基于51单片机的一个秒表计时器，每当计数60秒，LED灯将会翻转一次，读者可以自行更改程序，经试验，效果显著。-Based on a stopwatch timer microcontroller 51 whenever the count 60 seconds, LED lights will be flipped once, readers can change the program on their own, through testing, the effect is signific