https://static.assets-stash.eet-china.com/album/old-resources/2009/5/14/9746a327-10f3-432f-b5e3-36447863aea9.rar#include <reg51.h>
unsigned char code taba[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
unsigned char code tabb[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
void delay(void)
{
unsigned char i,j;
for(i=10;i>0;i--)
for(j=248;j>0;j--);
}
void delay1(void)
{
unsigned char i,j,k;
for(k=10;k>0;k--)
for(i=20;i>0;i--)
for(j=248;j>0;j--);
}
void zuoyou ()
{
unsigned char i,j;
for (j=0;j<3;j++)
for (i=0;i<8;i++)
{
P1=tabb;
P0=0x00;
delay1();
}
}
void youzuo ()
{
unsigned char i,j;
for (j=0;j<3;j++)
{
for(i=0;i<8;i++)
{
P1=tabb[7-i];
P0=0x00;
delay1();
}
}
}
void sxia ()
{
unsigned char i,j;
for (j=0;j<3;j++)
{
for(i=0;i<8;i++)
{
P1=0xff;
P0=taba[7-i];
delay1();
}
}
}
void xshang ()
{
unsigned char i,j;
for (j=0;j<3;j++)
{
for(i=0;i<8;i++)
{
P1=0xff;
P0=taba;
delay1();
}
}
}
void main( )
{
while( 1)
{
zuoyou ();
youzuo ();
sxia ();
xshang ();
}
}
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