以上就是中断的程序，今天又试了好久，依旧没有成功，请指点，谢谢~~~~

/****************************定时器0初始化***************************************************/
void Timer0_init()

{
TMOD=0x01;
IE=0x82;
TH0 = (65536-45872)/256;
TL0 = (65536-45872)%256;
TR0=1;
}


/*****************************定时器0中断******定时关机***********************************************/
void Time0_Init() interrupt 1

{
TH0 = (65536-45872)/256;
TL0 = (65536-45872)%256;
Count1++;

if(Count1==20)
{
Count1=0;
miao1--;
if(miao1==-1)
{
fen1--;
miao1=59;

if(fen1==-1)
{
shi1--;
fen1=59;

if(shi1==0)
{
shi1=0;

}
write_djs(1,shi1);

}

write_djs(3,fen1);
}

write_djs(5,miao1);
}

if(miao1==0&&fen1==0&&shi1==0&&m==1)
{
TR0=0;
RELAY=0; //继电器关闭，电机关闭
}
}
/***************************定时器1初始化**********************************************************/
void Timer1_init()

{
TMOD=0x11;
IE=0x88;
TH1 = (65536-45872)/256;
TL1 = (65536-45872)%256;
TR1=1;
}
/*****************************定时1中断******定时开机***********************************************/
void Time1_Init() interrupt 3

{
TH1 = (65536-45872)/256;
TL1 = (65536-45872)%256;
Count2++;

if(Count2==20)
{
Count2=0;
miao1--;
if(miao1==-1)
{
fen1--;
miao1=59;

if(fen1==-1)
{
shi1--;
fen1=59;

if(shi1==0)
{
shi1=0;

}
write_djs(1,shi1);

}
write_djs(3,fen1);
}

write_djs(5,miao1);
}

if(miao1==0&&fen1==0&&shi1==0)
{
TR1=0;
RELAY=1; //继电器工作，电机开启
}
}