C语言编写的基于单片机的计数器程序

total--;

write_com(0x80+0x09); delay(5);

write_data(numc); delay(5);

write_com(0x80+0x53); delay(5);

write_data(total); delay(5);

break;

case 0x7d:numd--;

total--;

write_com(0x80+0x13); delay(5);

write_data(numd); delay(5);

write_com(0x80+0x53); delay(5); write_data(total); delay(5);

break;