说明: 干货,干货,代码可用,51单片机按键控制PWM呼吸灯,#include #define uchar unsigned char #define uint unsigned int sbit s1=P3^0; sbit s2=P3^4; sbit s3=P3^5; sbit beep=P2^3; uint pwm; uint num; //延时 void delayms(uint t) { uchar x,y; for(x=t;x>0;x--)
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