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2019-3-27 14:36 上傳
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#include <reg51.h>
sbit KEY0=P1^0; //段選信號的鎖存器控制
sbit KEY1=P1^1; //位選信號的鎖存器控制
unsigned char code table0[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x67};
void delay(unsigned int i)
{
unsigned int m,n;
for(m=i;m>0;m--)
for(n=90;n>0;n--);
}
void main()
{
unsigned char num=5;
P2=0x6d;
while(1)
{
if(KEY0==0)
{
delay(200);
if(KEY0==0)
{
if(num==9)
{
num=0;
}
num++;
P2=table0[num];
while(KEY0==0);
}
}
if(KEY1==0)
{
if(num==0)
{
num=9;
}
delay(200);
if(KEY1==0)
{ num--;
P2=table0[num];
while(KEY1==0);
}
}
}
}
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