单片机LED流星雨源程序分享

#include<reg52.h>    #define uchar unsigned char#define led P1     bit flag=0;      uchar code lshift[3]={0x07,0x03,0x01};uchar code shift[7]={0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe};//imitate PWM datauchar code sta0[100]={  0x0f,0x8f,0x8f,0x8f,0x8f,0x8f,0x8f,0x8f,0x8f,0x8f,                        0xcf,0xcf,0xcf,0xcf,0xcf,0xcf,0xcf,0xcf,0xcf,0xcf,      0xcf,0xcf,0xcf,0xcf,0xcf,0xcf,0xcf,0xcf,0xcf,0xcf,      0xcf,0xcf,0xcf,0xef,0xef,0xef,0xef,0xef,0xef,0xef,      0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,      0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,      0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,      0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,      0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,      0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef,0xef               }; //functions statementvoid delay(uchar ms); uchar exchg(uchar dat);//main functionvoid main()    {  uchar i,j,k,x,sdata;   while(1)   {  for(k=1;k<8;k++)    for(i=0;i<22;i++)   for(j=0;j<100;j++)     {      sdata=(sta0[j]>>k)|shift[k-1];      if(flag==1)  led=exchg(sdata);    else led=sdata;      }  for(x=1;x<4;x++)    for(i=0;i<22;i++)   for(j=0;j<100;j++)     {      sdata=( sta0[j]<<(4-x) )|lshift[x-1];      if(flag==1)  led=exchg(sdata);    else led=sdata;  }    } }void delay(uchar ms){   uchar n;  while(ms--)  {    for(n=125;n>0;n--);  }}uchar exchg(uchar dat) //对字节的高位和低位进行互换！{   uchar temp;   temp=   ((dat&0x01)<<7)|   ((dat&0x02)<<5)|   ((dat&0x04)<<3)|   ((dat&0x08)<<1)|   ((dat&0x10)>>1)|   ((dat&0x20)>>3)|   ((dat&0x40)>>5)|   ((dat&0x80)>>7);return temp;}