你心里肯定很秀激动，这时你真正学会了单片然后再学会看电路图，电路图其实很简单，就是一根线从一个地方连接到另一个地方，你写代码时，只记住单片机是哪一个管脚，然后对它写代码即可。-Show your heart must be very excited, then you really learn and then learn to see a monolithic circuit, circuit diagram is actually very simple, it is a line from