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#include<reg51.h>
#include<intrins.h>
#define q unsigned int
#define w unsigned char
void qwe (q);
w s;
void main()
{
P2=0;
s=0x7f;
s=1;
while(1)
{
P2=s;
qwe(600);
s=_crol_(s,1);
}
}
void qwe(q k)
{
q x,y;
for(x=100;x>0;x--)
for(y=k;y>0;y--);
}
记住是谁写的薛yh
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