用单片机C51中switch语句编程,P1口接八个开关分别控制P0口八个LED灯

switch(P1)
{
case 0xfe:P0=0x01;break;

case 0xfd:P0=0x02;break;
case 0xfb:P0=0x04;break;
case 0xf7:P0=0x08;break;
case 0xef:P0=0x10;break;
case 0xdf:P0=0x20;break;
case 0xbf:P0=0x40;break;
case 0x7f:P0=0x80;break;
default:break;

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