一个好玩的C51动态扫描小程序

#include
#define uchar unsigned char
#define uint unsigned int
#define dp P0
char code DuanMa[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40}; //单个数码管显示数
char code fenjie[]={0,0x01,0x03,0x07,0x0f,0x1f,0x3f,0x7f};
char code WeiMa[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f}; //数码管的位选择：从0到7.
sbit LATCH1=P2^6;	//	控制数码管段的位
sbit LATCH2=P2^7; //	控制数码管位的位
void delay(unsigned int t)
{
 while(--t);
}
void main()
{
 int i,j,k;
      while(1)
        {
     delay(5000);
     for(i=0;i<7;i++)	//段码
      { 
        for(j=0;j<8;j++)	//位码
         { 
          for(k=0;k<10;k++) //调节k的值可调节扫描时间
                 {

               dp=WeiMa[j]; //取位码
                    LATCH2=1;     
                    LATCH2=0; 
dp=DuanMa[i]; //取段码 
               LATCH1=1;     
                    LATCH1=0;
delay(2500);

               dp=fenjie[i]; //取段码 
               LATCH1=1;     
                    LATCH1=0;
               dp=WeiMa[7]; //取位码
                    LATCH2=1;     
                    LATCH2=0; 
           delay(50);

dp=0; //取段码 清零	  减小余晖影响
               LATCH1=1;     
                    LATCH1=0;
               dp=WeiMa[j]; //取位码
                    LATCH2=1;     
                    LATCH2=0; 
           delay(1000); 
                  }
      }
 	   
           }	 
         //闪烁8
        for(k=0;k<10;k++)
                  {
                   dp=fenjie[7]; //取段码 
              LATCH1=1;     
                   LATCH1=0;
              dp=WeiMa[7]; //取位码
                   LATCH2=1;     
                   LATCH2=0;
              delay(6000);
  delay(6000);
                   
  dp=0; //取段码 
              LATCH1=1;     
                   LATCH1=0;
              dp=WeiMa[7]; //取位码
                   LATCH2=1;     
                   LATCH2=0;
                   delay(6000);
                  }	    
        }	 
}