#include <REGX51.H>
unsigned char PATTERN[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};
unsigned int i,j,k,l,m,del;
void main()
{
P3=0x00;
P2=0x00;
while(1)
{
for(j=0;j<10;j++)
{
for(k=0;k<10;k++)
{
for(l=0;l<10;l++)
{
for(m=0;m<10;m++)
{
for(del=0;del<10;del++)
{
P2=0x01; //0000 0001
P3=PATTERN[m];
for(i=0;i<500;i++);
P2=0x00;
//0000 0010
P2=0x02;
P3=PATTERN[l];
for(i=0;i<500;i++);
P2=0x00;
P2=0x04; //0000 0100
P3=PATTERN[k];
for(i=0;i<500;i++);
P2=0x00;
//0000 1000
P2=0x08;
P3=PATTERN[j];
for(i=0;i<500;i++);
P2=0x00;
}
}
}
}
}
}
}
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