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標(biāo)題: 51單片機(jī)實(shí)例 [打印本頁(yè)]

作者: KX1649464501 時(shí)間: 2021-6-24 11:35
標(biāo)題: 51單片機(jī)實(shí)例
#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit K1 = P1^0;
sbit RELAY = P2^4;
void DelayMS(uint ms)
{
uchar t;
while(ms--)
{
     for(t=0;t<120;t++);
}
}

void main()
{
P1 = 0xff;
RELAY = 1;
while(1)
{
     if(K1==0)
{
     while(K1==0);
RELAY = ~RELAY;
DelayMS(20);
}
}
}

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