pinMode(2,0);
//¶¨ÁxÒýÄ_2žéÝ”Èë¿Ú£¬
pinMode(3,1);
//ÒýÄ_3žéÝ”³ö¿Ú£¬
digitalWrite(3£¬1);
//ÒýÄ_3Ý”³ö¸ßëŠÆ½
attachInterrupt(int0, guandeng, FALLING);
//ÒýÄ_2ϽµÑØÓ|°l(f¨¡)º¯”µ(sh¨´)êP(gu¨¡n)Ÿô
//³õʼ»¯¶¨ÁxÒýÄ_
void guandeng£¨£©
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delay(5000);
//ÑÓ•r(sh¨ª)5000ms;
digitalWrite(3, 0);
//ÒýÄ_3µÍëŠÆ½£»
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