电路很简单我就不画了，是stc系列的单片机做的，显现部分便是2个74hc573芯片连到P1口，然后用p3.0操控段选，按键的界说程序里有阐明。很简单就能搭出来，下图是效果图，自己用万用板焊的，技能不可。处处都是飞线呵呵，请我们多多指教
程序的c51言语完好版别的下载地址：http://www.51hei.com/f/biaoc4.rar
#include#define uchar unsigned char#define uint unsigned intuchar d0,ss,gs,sf,gf,sm,gm;uchar e1,e2,e3,e4,e5,e6;uchar s1,q1;uchar shi,fen,miao;// 8 4 2 1 8 4 2 1 // h g f e d c b a//效正 累加数98 跑1320秒 实践1316//当时已走秒数 乘以 当时累加数 除以除以实践秒数 等于 累加数应得值uchar code num[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x80};//0-9 点uchar code wes[]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0x7f};//1-8位sbit dua=P3^0;sbit laba=P3^1;sbit a1=P3^2;//时刻设置sbit a2=P3^3;//闹钟设置sbit a3=P3^4;//按键+sbit a4=P3^5;//按键-sbit a5=P3^7;//回来 发动闹钟void weiduan(uchar z,uchar x); //位段 函数void chushi(); //初始化函数void shijian(); //时刻显现函数void shjianbata();//测验时刻函数void shezhi(); //时刻设置函数void naozhong(); //闹钟这是函数void shu(); //时刻最大值约束函数void delay(uchar d1);//延时函数//.....................................................................................void main(){ chushi(); //初始化时刻TH0=(65535-40000)/256;//定时器装初值TL0=(65535-40000)%256;ET0=1;//开定时器0中止TR0=1;//发动定时器0EA=1; //翻开总中止laba=1;while(1){ shijian(); //调用时刻显现函数 显现时刻 if(a1==1){if(a2==1){if(a3==1){if(a4==1){ weiduan(1,10);delay(5);weiduan(3,10);delay(5);weiduan(5,10);delay(5); }}}}if(a1==0){delay(100);if(a1==0){shezhi();}}if(a2==0){delay(100);if(a2==0){naozhong();}}//调用闹钟设置函数if(a5==0){delay(100);{if(a5==0){while(1){if(q1==0){q1=1;break;}else{q1=0;break;}}while(a5==0);delay(100);}}}if(a2==0){delay(100);if(a2==0){naozhong();} }if(q1==1){weiduan(6,0);delay(20);if(fen==e2){if(shi==e1){laba=0;}}if(fen!=e2){laba=1;} }else{laba=1;}}}//.....................................................................................void naozhong(){while(1){ ss=e1/10;gs=e1%10; sf=e2/10;gf=e2%10; sm=e3/10;gm=e3%10;delay(10);weiduan(0,ss);delay(10);weiduan(1,gs);delay(10);weiduan(2,sf);delay(10); weiduan(3,gf);delay(10);weiduan(4,sm);delay(10);weiduan(5,gm);delay(10);if(a1==0){delay(100);if(a1==0){while(a1==0);delay(20);break;}}if(a2==0){delay(100);while(a2==0);delay(20);s1++;}if(s1==3){s1=0;}if(s1==1){weiduan(0,10);delay(5);weiduan(1,10);delay(5);if(a3==0){delay(20);if(a3==0){e1++;}while(a3==0);delay(100);}if(a4==0){delay(20);if(a4==0){e1--;}while(a4==0);delay(100);}}if(s1==2){weiduan(2,10);delay(5);weiduan(3,10);delay(5);if(a3==0){delay(20);if(a3==0){e2++;}while(a3==0);delay(100);}if(a4==0){delay(20);if(a4==0){e2--;}while(a4==0);delay(100);}}if(s1==0){weiduan(4,10);delay(5);weiduan(5,10);delay(5);if(a3==0){delay(20);if(a3==0){e3++;}while(a3==0);delay(100);}if(a4==0){delay(20);if(a4==0){e3--;}while(a4==0);delay(100);}}}}
