同样的图和代码，发给师傅运行没问题，在另一个师兄那里数码管不亮，在我这里实现不了按键控制，想知道是什么问题
#include <reg51.h>
#define uint unsigned int
uint k;
unsigned char x,y,z;
unsigned char seg7code[16]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e};
void delayms()
{
uint i,j;
for(i=200;i>0;i--)
for(j=100;j>0;j--);
}
void scannkey()
{
P3=0x0f;
while(P1==0x0f);
if(P3!=0x0f)
{
delayms(); //????
x=P3;
P3=0xf0;
y=P3;
z=x|y;
switch(z)
{
case(0xee):k=0;break;
case(0xde):k=1;break;
case(0xbe):k=2;break;
case(0x7e):k=3;break;
case(0xed):k=4;break;
case(0xdd):k=5;break;
case(0xbd):k=6;break;
case(0x7d):k=7;break;
case(0xeb):k=8;break;
case(0xdb):k=9;break;
case(0xbb):k=10;break;
case(0x7b):k=11;break;
case(0xe7):k=12;break;
case(0xd7):k=13;break;
case(0xb7):k=14;break;
case(0x77):k=15;break;
}
}
}
void main()
{
while(1)
{
scannkey();
P0=seg7code[k];
}
}
救救我救救孩子吧
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