流水灯.c

心形流水灯程序

#include<reg52.h>
void delay1ms(unsigned int i)
{

	unsigned char j;
	 while(i--)
	 {
	 for(j=0;j<115;j++)	  //1ms基准延时程序
	 {
	  ;
	 } 
	 }  
}
void main()
{
unsigned char k=20,c=5,b=6,a=3,t;
unsigned char tabb[8]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
	while(a--)
	{
		while(k--)
		{
		
			P0=0x00;
			P1=0x00;
			delay1ms(500);
		}
		while(c--)
		{
			P0=0xff;
			P1=0xff;
			delay1ms(500);
			P0=0x00;
			P1=0x00;
			delay1ms(500);
			P0=0xff;
			P1=0xff;
		 }
	 	while(b--)
	 	{
	 	    for(t=0;t<8;t++)
			{
				P0=tabb[7-t];
				delay1ms(200);
			}
			P0=0xff;
			for (t=0;t<8;t++)
			{
				P1=tabb[t];
				delay1ms(200);
			}
			P1=0xff;
		}
		k=20,c=5,b=6,a=3;			
	}
}