单片机 流水灯与蜂鸣器结合 C语言程序.doc

#include#include #define uint unsigned int#define uchar unsigned charsbit beep=P23;void delayms(uint);uchar a;void main()a=0xfe;/赋值 11111110while(1)/大循环delayms(100);beep=0;/打开蜂鸣器delayms(100);beep=1;/关闭蜂鸣器P1=a;delayms(600);a=_crol_(a,1);/循环左移 a=_cror_(a,1) 循环右移void delayms(uint xms)uint i,j;for(i=xms;i0;i-)for(j=110;j0;j-);