Realize the effect of horizontal and vertical running lights-EEWORLD

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Task:
1. Horizontal flow of water
2. Vertical water flow
3. Oblique water discharge
1. Horizontal flow of water  

Source program:
/****************************************************** ****************************
Author: Liu Haitao
Version: First time
Date: July 23, 2010
Description: The order of the running lights is P0, P1, P2, P3 from 0 to 7 bits.
*************************************************** *******************************/


/**********************************Header file**************************************/
#include "reg52.h"
/****************************************************** *******************************/


/****************************************************** ****************************
Function name: delay(), delay function.
Macro definition: None
Input: None
Output: None
*************************************************** *******************************/
delay(unsigned int dat) //Function definition
{
 unsigned int i,j;
 for(i=0;i<=dat;i++)
   {
    for(j=0;j<=20000;j++);
   }
}

void main(void) //main function
{
 unsigned char i;
 while(1) //loop
 {
  for(i=0;i<8;i++)
  {  
   P0=0x01<=8)
    {
        a=i-8;
   }
    
   P1=0x01<=8)
    {
   b=b-8;
   }
      P2=0x01<=8)
    {
   c=c-8;
   }
   P3=0x01<

Reference address：Realize the effect of horizontal and vertical running lights

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