利用动态扫描和定时器1在数码管上显示出从765432开始以1/10秒的速度往下递减 直至765398并保持此数，与此同时利用定时器0以500MS速度进行流水灯从上至下移动 ，当数码管上数减到停止时，实验板上流水灯出停止然后全部开始闪烁，3秒后（用 T0定时）流水灯全部关闭，数码管上显示出“HELLO”，到此保持住

#include <reg52.h>

#include <intrins.h>

#define uchar unsigned char 
#define uint unsigned int

/**tatle_du数组数据为0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,H,L**/
uchar code tatle_du[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,
0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,
0x76,0x79,0x38,0};

uchar code tatle_we[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf};

sbit dula=P2^6;
sbit wela=P2^7;    

uchar tt,t0,numwe,numdu,temp,bai,shi,ge,flag,flag1;
uint shu;

void display(uchar aa,uchar bb,uchar cc,uchar bai,uchar shi,uchar ge);
void delay(uchar z);
void inter_init();

void main()
{
    inter_init();
    while(1)
    {    
        if(flag1 != 1)
        {
            display(7,6,5,bai,shi,ge);
        }
        else
        {
             display(16,17,18,18,0,19);
        }                         
    }

}

/*定时器0流水灯与闪烁*/
void inter0() interrupt 1
{
    TH0=(65536-50000)/256;
    TL0=(65536-50000)%256;
    tt++;
    /*如果减数不到398，流水灯与减数同时运行，如果到了398开启闪烁*/
    if(flag != 1)
    {
    /*流水灯*/
        if(tt==10)
        {
            tt=0;
            delay(5);
            temp=_crol_(temp,1);
            P1=temp;
        }
    }
    else
    {
    /*使灯闪烁4秒*/
         if(tt%4==0)
         {
             P1=~P1;            
         }
         if(tt==80)
        {
            TR0=0;
            P1=0xff;
            flag1=1;
        }
    }    
}
/*定时器1数码管显示*/
void inter1() interrupt 3
{
    TH1=(65536-50000)/256;
    TL1=(65536-50000)%256;
    t0++;
    
    if(t0==2)
    {
        t0=0;
        shu--;
        bai=shu/100;
        shi=shu%100/10;
        ge=shu%10;
        if(shu==398)
        {
            TR0=0;    //关闭定时器0，关闭流水灯
            P1=0xff;
            TH0=(65536-50000)/256;
            TL0=(65536-50000)%256;
            tt=0;
            TR0=1;    //开启定时器0，并填充数据。使灯闪烁
            flag=1;
            TR1=0;    //关闭定时器1保持数据显示
        }
    }
}

void delay(uchar z)
{
    uchar x,y;
    for(x=z;x>0;x--)
    {
        for(y=110;y>0;y--);
    }
}

void inter_init()
{
    tt=0;
    t0=0;
    flag=0;
    flag1=0;
    shu=432;
    temp=0xfe;
    P1=temp;
    TMOD=0x11;
    TH0=(65536-50000)/256;
    TL0=(65536-50000)%256;
    TH1=(65536-50000)/256;
    TL1=(65536-50000)%256;
    EA=1;
    ET0=1;
    ET1=1;
    TR0=1;
    TR1=1;
}

void display(uchar aa,uchar bb,uchar cc,uchar bai,uchar shi,uchar ge)
{
    dula=1;
    P0=tatle_du[aa];    
    dula=0;
    P0=0xff;
    wela=1;
    P0=0xfe;
    wela=0;
    delay(5);

    dula=1;
    P0=tatle_du[bb];
    dula=0;
    P0=0xff;
    wela=1;
    P0=0xfd;
    wela=0;
    delay(5);

    dula=1;
    P0=tatle_du[cc];
    dula=0;
    P0=0xff;    
    wela=1;
    P0=0xfb;
    wela=0;        
    delay(5);

    dula=1;
    P0=tatle_du[bai];    
    dula=0;
    P0=0xff;
    wela=1;
    P0=0xf7;
    wela=0;
    delay(5);

    dula=1;
    P0=tatle_du[shi];
    dula=0;
    P0=0xff;
    wela=1;
    P0=0xef;
    wela=0;
    delay(5);
    
    dula=1;
    P0=tatle_du[ge];
    dula=0;
    P0=0xff;        
    wela=1;
    P0=0xdf;
    wela=0;
    delay(5);
}