内容:跟珜羽一起学Arduino NO.2.2 按键控制灯 http://XXXXXXXXXXXXXX/XXXXXXXXXXXXXXXXXXml 在上一节 跟珜羽一起学Arduino NO.2.1 修改点灯程序,(http://XXXXXXXXXXXXXX/XXXXXXXXXXXXXXXXXXml )中,我们知道了 pinMode(13, OUTPUT); 是设置引脚为输出高低电平驱动LED亮灭。, { // initialize the digital pin as anoutput. // Pin 13 has an LED connected onmost Arduino