p7-5 ex3

#include "reg51.h"
unsigned  char  P1table1[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
unsigned  char  P1table2[]={0xFF,0x00};
int i;
sbit dip_sw1=P0^0;
void delay_1ms(int);
void delay_1ms(int k)
{
int i,j;
for(i=0;i<k;i++)
for(j=0;j<114;j++)
      ;
}
main()
{
  while(1)
  {
if(dip_sw1==0)
{
for(i=0;i<8;i++)
{
P1=~P1table1[i];
delay_1ms(1000);
}
}
else if(dip_sw1 == 1)
{
      for(i=0;i<2;i++)
{
P1=P1table2[i];
delay_1ms(1000);
}
}
  }
}