a10.c

单片机实验程序-13种-17.4M-pdf.zip

//“验证式”	实验十  P3.3口输入 P1口输出

#include "reg51.h"
sbit p30=P3^0;
void DELAY();
void main()
{
    unsigned char i=0;
    P1=0;
    while(1)
    {
    while(p30)
    DELAY();
    while(!p30)
    DELAY();
    P1=i;
    i++;
    }
}
void DELAY(void)
{
   unsigned char i=0;
   while(i++!=255)
   i=i;
}