51单片机c语言设计,按键控制数码管,依次按下显示0到9循环答:include<reg51.h> sbit k1=P1^0;define uint16 unsigned int define uchar unsigned char uchar code shuzu[ ]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};void delay(){ uint16 i=1000;while(i--);} void main(){ uchar n ;P2=0xfe;P1=0xff;while(1){ if...
51单片机 秒表设计 怎么用按键控制开始 停止和清零?答:sbit AA=P3^4;//数码管显示用IO端口 sbit BB=P3^5;sbit CC=P3^6;sbit DD=P3^7;sbit X=P2^7;//启动按钮 sbit Y=P2^6;//停止按钮 sbit Z=P2^5;//清零按钮 int aa,temp;char table[10]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};//共阳极 //char table[10...