第1个回答 推荐于2017-12-26
# include< reg51.h>
unsigned char count=0;
unsigned char a[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e};
void main()
{
EA=1;
Ex1=1; //外部中断1
ET1=1;
while(1)
{
P0=a[count]; //P0口接数码管
}
}
void int1() interrupt 2 //外部中断1(INT1)
{
P2=0x01; //数码管引脚接了P2.0口
P0=a[count++];
}本回答被网友采纳