51单片机 按键长按短按效果答:include<reg51.h>#define uchar unsigned char#define uint unsigned int sbit key=P1^0;sbit LED1=P1^4;sbit LED2=P1^5;uchar code ledtab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};uint dat,cnt;uchar dis[4],disscan=0;bit flags,flagl;void t0isr() ...