{
TMOD=0X10; //定時器1
ET1=0; //打開定時器1中斷
EA=1; //打開總中斷
TR1=0; //啟動定時器1
TH1=0xxx; //算吧
TL1=0xxx;
}
void t0(void) interrupt 3
TF1=0;
time_count++;
TH1=0xxx; //重裝