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怎樣用一個(gè)標(biāo)記數(shù)做判斷語句
while(1)
{
scan_encoder();
if(PIND==0)
{ display();
delayms(10);
else if(PIND==1)
{display001();
if(counter++)//counter為計(jì)數(shù)的
hour++;
if(hour>=24)
hour=0; }
if(counter--)
{ hour--
if(hour<=0)
hour=23; } }
else if(PIND==2)
{ display002();
if(counter++)
min++
if(min>=60)
min=0;
if(counter--)
{ min--
if(min<=0)
min=59; } }
else {
counter=0;
}
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