这是照抄视频教程上的程序。视频上能够实现,我的却一直是乱码显示,求解啊。整了一周了,没有任何头绪
#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
sbit dula=P2^6;
sbit wela=P2^7;
uchar num,temp;
uchar code table[]=
{0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71,0};
void delay(uint z);
void main()
{
dula=0;
P0=0;
dula=1;
wela=1;
P0=0xc0;
wela=0;
while(1)
{
P3=0xfe;
temp=P3;
temp=temp&0xf0;
if(temp!=0xf0)
{
delay(5);
temp=P3;
temp=temp&0xf0;
if(temp!=0xf0)
{
temp=P3;
switch(temp)
{
case 0xe0:num=1;
break;
case 0xd0:num=2;
break;
case 0xb0:num=3;
break;
case 0x70:num=4;
break;
}
dula=1;
P0=table[num-1];
dula=0;
}
}
}
}
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
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