è¿ä¸ªå¯ä»¥è¿æ ·å®ç°ï¼
#include<reg51.h>
#define uchar unsigned char
uchar time=0;
sbit key=P1^0;
void t0isr() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
time++;
}
main()
{
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
TR0=1;
ET0=1;
EA=1;
while(1)
{
while(key) // å¦ææé®æªæä¸åæ§è¡å¾ªç¯
{
if(time>100)break; //å¦ææ¶é´å¤§äº5ç§ï¼éåºå¾ªç¯ã
}
............
}
}
温馨提示:答案为网友推荐,仅供参考