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void dispose() //根據速度編制進行數據處理
{
switch(num)
{
case0:
show_num=1; //數碼管第一位顯示的數據
gao_num=1; //pwm信號中高電平持續時間標志為1
di_num=3; //pwm信號中低電平持續時間標志為3,此時速度最慢
break;
case1:
show_num=2;
gao_num=2;
di_num=2;
break;
case2:
show_num=3;
gao_num=3;
di_num=1;
break;
case3:
show_num=4;
gao_num=4;
di_num=0; //此時速度最快
break;
}
}
這是編譯后的警告,我在主程序當中調用這個dispose函數了,該怎么改,在線等
DIANJITIAOSU.C(83): warning C280: 'case0': unreferenced label
DIANJITIAOSU.C(88): warning C280: 'case1': unreferenced label
DIANJITIAOSU.C(93): warning C280: 'case2': unreferenced label
DIANJITIAOSU.C(98): warning C280: 'case3': unreferenced label
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