标题: 两路循环流水灯 [打印本页]

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作者: 梁廷明    时间: 2018-1-26 12:54
标题: 两路循环流水灯
#include <reg51.h>
unsigned char i;
unsigned char temp;
unsigned char a,b;

void delay(void)
{
unsigned char m,n,s;
for(m=20;m>0;m--)
for(n=20;n>0;n--)
for(s=248;s>0;s--);
}
void main(void)
{
while(1)
{
temp=0xfe;
P2=temp;
delay();
for(i=1;i<8;i++)
{
a=temp<<i;
b=temp>>(8-i);
P2=a|b;
delay();
}
for(i=1;i<8;i++)
{
a=temp>>i;
b=temp<<(8-i);
P2=a|b;
delay();
}
}
}

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