单片机原理及应用课程设计报告
alarm_hour=alarm_hour-40;}
keycode3=0;}
if(keycode4==1)//减时
{
if(keytcount==0){
alarm_hour--;}
alarm_hour=alarm_hour-keytcount*10;keytcount=0;if(alarm_hour==-1){
单片机原理及应用课程设计报告
alarm_hour=alarm_hour-40;}
keycode3=0;}
if(keycode4==1)//减时
{
if(keytcount==0){
alarm_hour--;}
alarm_hour=alarm_hour-keytcount*10;keytcount=0;if(alarm_hour==-1){
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