#include<reg51.h> //包含單片機寄存器的頭文件
#include <intrins.h>
/*****************************
函數功能：延時壹段時間
*****************************/
unsigned char L[8]={0x01,0x03,0x07,0x0f,0x1f,0x3f,0x7f,0xff};
unsigned char L1[8]={0x7f,0x3f,0x1f,0x0f,0x07,0x03,0x01,0x00};
bit pause;
void ex0isr() interrupt 0
{
pause=~pause;
}
void delay1s(unsigned int i)
{
unsigned int j;
while(i--)
{
for(j=0;j<=151;j++){;}
}
while(pause);//實現暫停，鍵按壹下暫停，再按壹下恢復。
}
/*****************************
函數功能：主函數
*****************************/
void main(void)
{
unsigned char i,j;
P0 = 0x00;
P1 = 0x00;
P2 = 0x00;
P3 = 0x00;
pause=0;
while(1)
{
for(j=0;j<8;j++)
{
P0=L[j];
delay1s(100);
};
for(j=0;j<8;j++)
{
P1=L[j];
delay1s(100);
};
for(j=0;j<8;j++)
{
P2=L[j];
delay1s(100);
};
for(i=0;i<8;i++)
{
P3=L[i];
delay1s(100);
};
for(j=0;j<8;j++)
{
P0=L1[j];
delay1s(100);
};
for(j=0;j<8;j++)
{
P1=L1[j];
delay1s(100);
};
for(j=0;j<8;j++)
{
P2=L1[j];
delay1s(100);
};
for(i=0;i<8;i++)
{
P3=L1[i];
delay1s(100);
};
}
}