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ÄÚÈÝ·¢²¼¸üÐÂʱ¼ä : 2026/3/22 9:02:26ÐÇÆÚÒ» ÏÂÃæÊÇÎÄÕµÄÈ«²¿ÄÚÈÝÇëÈÏÕæÔĶÁ¡£

else if(keyval==0xf7) //°´¼ü5 ÉèÖÃÄÖÖÓʱ¼ä {

clock_shanshuo=1;

clock_hh=dispbuf[0]*10+dispbuf[1]; //±£´æËùÉèÄÖÖÓʱ¼ä clock_mm=dispbuf[2]*10+dispbuf[3]; dispbuf[0]=hh/10; dispbuf[1]=hh; dispbuf[2]=mm/10; dispbuf[3]=mm;

}

break;

case 4: //Ãë±íģʽ

if(keyval==0x7f) //°´¼ü1 µ÷Õûģʽ ½øÈëʱÖÓÏÔʾģʽ {

mode=0;

TR1=0; //¹Ø±ÕÃë±í dispbuf[0]=mm/10; dispbuf[1]=mm; dispbuf[2]=ss/10; dispbuf[3]=ss; }

else if(keyval==0xef) //°´¼ü4 ¿ªÊ¼¡¢ÔÝÍ£ {

old_ss=miaobiao_ss; old_ms=miaobiao_ms; TR1=~TR1; }

else if(keyval==0xbf||keyval==0xdf) //°´¼ü2»ò°´¼ü3 ÇåÁã {

miaobiao_ss=0; miaobiao_ms=0;

dispbuf[0]=miaobiao_ss/10; dispbuf[1]=miaobiao_ss; dispbuf[2]=miaobiao_ms/10; dispbuf[3]=miaobiao_ms; }

break;

default:

break; } }

/******************ÑÓʱ³ÌÐò******************/ void delay(unsigned int t) {

while(t--); }

/******************ÖжϳÌÐò£¬ÓÃÓÚÃë±í******************/ void t1int(void) interrupt 3 using 3 {

TH1=(0-2000)/256; TL1=(0-2000)%6; cnt2++; if(cnt2>=5) {

cnt2=0;

miaobiao_ms++;

if(miaobiao_ms>=100) {

miaobiao_ms=0; miaobiao_ss++;

if(miaobiao_ss>=60) {

miaobiao_ss=0; } }

dispbuf[0]=miaobiao_ss/10; dispbuf[1]=miaobiao_ss; dispbuf[2]=miaobiao_ms/10; dispbuf[3]=miaobiao_ms; } }

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