#include<reg51.h> #define uchar unsigned char #define uint unsigned int sbit k1=P1^0; sbit k2=P1^1; sbit k3=P1^2; sbit k4=P1^3; sbit k5=P1^4; sbit k6=P1^5; sbit k7=P1^6; sbit k8=P1^7; //选手按键 sbit beep=P3^6; //蜂鸣器 uchar code tab[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77}; //0-9代码(共阴极) uchar shiwei,gewei,xuanshou,count,i,second; ucharscore1,score2,score3,score4,score5,score6,score7,score8;//选手1~8的分数 uint t,m,n,a,a1,a2,a3,a4,a5,a6,a7,a8,k,m1,n2,m2,n2; void Timer() { TMOD|=0x01; TH0=0xd8; //初值55536,计数10000次,每次1US,总计10ms TL0=0xf0; IE=0x82; //这里是中断优先级控制EA=1(开总中断),ET0=1(定时器0允许中断),这里用定时器0来定时 TR0=1; } void tim(void) interrupt 1 using 1 //为定时中断TR0 { TH0=0xd8; //重新赋值 TL0=0xf0; count++; if(count==100)//100*10ms=1秒 { count=0; second--;//秒减1 } } void delay(uint z) //延时函数 { uintx,y; for(x=z;x>0;x--) for(y=110;y>0;y--);//延时1ms } void display (uchar shiwei,gewei,xuanshou)//显示函数 { P2=0xfe; //打开显示时间十位的位选低电平有效1111 1110 P0=shiwei;//显示十位 delay(5); P2=0xfd; //个位位选1111 1101 P0=gewei; delay(5); P2=0xf7; //选手位选1111 0111 P0=xuanshou; delay(5); } void dis(void)//调用显示函数 { shiwei=tab[second/10]; gewei=tab[second%10]; xuanshou=tab; display(shiwei,gewei,xuanshou); } void init() //初始化函数 { P2=0x04;//00000100 P0=0x3f;//数码管共阴0011 1111显示0 t=0; beep=0;//蜂鸣器 i=0; second=29; score1=60; score2=60; score3=60; score4=60; score5=60; score6=60; score7=60; score8=60; a1=1; a2=1; a3=1; a4=1; a5=1; a6=1; a7=1; a8=1; } void main()//主函数 { init();//调用初始化函数 if(k==1){ m=0; if(k1==0){delay(5);if(k1==0);while(!k1);beep=1;delay(500);beep=0;} // 违规抢答显示号码报警 while(t) { if(m==0)//开关,保证程序只执行一次 { switch(t) { case1: { TR0=0;i=1;second=score1;beep=1;delay(500);beep=0; a1=0;a2=1;a3=1;a4=1;a5=1;a6=1;a7=1;a8=1;m=1;break;//有选手抢答时显示选手号码蜂鸣器响,时间为0,t和i对应 }}} } if(k2==0){delay(5);if(k1==0);while(!k1);t=2;beep=1;delay(500);beep=0;} if(k3==0){delay(5);if(k1==0);while(!k1);t=3;beep=1;delay(500);beep=0;} if(k4==0){delay(5);if(k1==0);while(!k1);t=4;beep=1;delay(500);beep=0;} if(k5==0){delay(5);if(k1==0);while(!k1);t=5;beep=1;delay(500);beep=0;} if(k6==0){delay(5);if(k1==0);while(!k1);t=6;beep=1;delay(500);beep=0;} if(k7==0){delay(5);if(k1==0);while(!k1);t=7;beep=1;delay(500);beep=0;} if(k8==0){delay(5);if(k1==0);while(!k1);t=8;beep=1;delay(500);beep=0;} } if(k==0) { Timer();//中断定时器打开 delay(10); while(!k); while(1) { dis(); m=0; n=0; if(second==29){beep=1;delay(500);beep=0;} if(second==0){ TR0=0;n=1; if(k1==0){delay(5);if(k1==0);while(!k1);t=1;beep=1;delay(500);beep=0;} // 违规抢答显示号码报警 if(k2==0){delay(5);if(k1==0);while(!k1);t=2;beep=1;delay(500);beep=0;} if(k3==0){delay(5);if(k1==0);while(!k1);t=3;beep=1;delay(500);beep=0;} if(k4==0){delay(5);if(k1==0);while(!k1);t=4;beep=1;delay(500);beep=0;} if(k5==0){delay(5);if(k1==0);while(!k1);t=5;beep=1;delay(500);beep=0;} if(k6==0){delay(5);if(k1==0);while(!k1);t=6;beep=1;delay(500);beep=0;} if(k7==0){delay(5);if(k1==0);while(!k1);t=7;beep=1;delay(500);beep=0;} if(k8==0) {delay(5);if(k1==0);while(!k1);t=8;beep=1;delay(500);beep=0;} if(k==0) {beep=1;delay(500);beep=0;second=29;TR0=1;m=1;} }//如果再次按下开始按钮,蜂鸣器响0。5秒,定时器打开,从29开始倒计时 if(n==0) { if(k1==0) {delay(5);if(k1==0);while(!k1);t=1;} //正常抢答显示号码 elseif(k2==0) {delay(5);if(k2==0);while(!k2);t=2;} elseif(k3==0) {delay(5);if(k3==0);while(!k2);t=3;} elseif(k4==0) {delay(5);if(k4==0);while(!k2);t=4;} elseif(k5==0) {delay(5);if(k5==0);while(!k2);t=5;} elseif(k6==0) {delay(5);if(k6==0);while(!k2);t=6;} elseif(k7==0) {delay(5);if(k7==0);while(!k2);t=7;} elseif(k8==0) {delay(5);if(k8==0);while(!k2);t=8;} elseif(k==0) {delay(5);if(k==0);while(!k);t=0;i=0;second=29;beep=1;delay(500);beep=0;TR0=1;}//从新开始,从新启动。 } while(t) { if(m==0)//开关,保证程序只执行一次 { switch(t) { case1: { TR0=0;i=1;second=0;beep=1;delay(500);beep=0; a1=0;a2=1;a3=1;a4=1;a5=1;a6=1;a7=1;a8=1;m=1;break;//有选手抢答时显示选手号码蜂鸣器响,时间为0,t和i对应 } case2: { TR0=0;i=2;second=0;beep=1;delay(500);beep=0; a2=0;a1=1;a3=1;a4=1;a5=1;a6=1;a7=1;a8=1;m=1;break; } case3: { TR0=0;i=3;second=0;beep=1;delay(500);beep=0; a3=0;a1=1;a2=1;a4=1;a5=1;a6=1;a7=1;a8=1;m=1;break; } case4: { TR0=0;i=4;second=0;beep=1;delay(500);beep=0; a4=0;a1=1;a2=1;a3=1;a5=1;a6=1;a7=1;a8=1;m=1;break; } case5: { TR0=0;i=5;second=0;beep=1;delay(500);beep=0; a5=0;a1=1;a2=1;a3=1;a4=1;a6=1;a7=1;a8=1;m=1;break; } case6: { TR0=0;i=6;second=0;beep=1;delay(500);beep=0; a6=0;a1=1;a2=1;a3=1;a4=1;a5=1;a7=1;a8=1;m=1;break; } case7: { TR0=0;i=7;second=0;beep=1;delay(500);beep=0; a7=0;a1=1;a2=1;a3=1;a4=1;a5=1;a6=1;a8=1;m=1;break; } case8: { TR0=0;i=8;second=0;beep=1;delay(500);beep=0; a8=0;a1=1;a2=1;a3=1;a4=1;a5=1;a6=1;a7=1;m=1;break; } } } if(a1==0)//选手1的分数 { second=score1; dis(); if(m1==0){delay(5);if(m1==0);while(!m1);beep=1;delay(100);beep=0;score1+=5;} else if(m2==0){delay(5);if(m2==0);while(!m2);beep=1;delay(100);beep=0;score1-=5;} dis(); } elseif(a2==0) { second=score2; dis(); if(m1==0){delay(5);if(m1==0);while(!m1);beep=1;delay(100);beep=0;score2+=5;} else if(m2==0){delay(5);if(m2==0);while(!m2);beep=1;delay(100);beep=0;score2-=5;} dis(); } elseif(a3==0) { second=score3; dis(); if(m1==0){delay(5);if(m1==0);while(!m1);beep=1;delay(100);beep=0;score3+=5;} else if(m2==0){delay(5);if(m2==0);while(!m2);beep=1;delay(100);beep=0;score3-=5;} second=score3; dis(); } elseif(a4==0) { second=score4; dis(); if(m1==0){delay(5);if(m1==0);while(!m1);beep=1;delay(100);beep=0;score4+=5;} else if(m2==0){delay(5);if(m2==0);while(!m2);beep=1;delay(100);beep=0;score4-=5;} second=score4; dis(); } elseif(a5==0) { second=score5; dis(); if(m1==0){delay(5);if(m1==0);while(!m1);beep=1;delay(100);beep=0;score5+=5;} else if(m2==0){delay(5);if(m2==0);while(!m2);beep=1;delay(100);beep=0;score5-=5;} second=score5; dis(); } elseif(a6==0) { second=score6; dis(); if(m1==0){delay(5);if(m1==0);while(!m1);beep=1;delay(100);beep=0;score6+=5;} else if(m2==0){delay(5);if(m2==0);while(!m2);beep=1;delay(100);beep=0;score6-=5;} second=score6; dis(); } elseif(a7==0) { second=score7; dis(); if(m1==0){delay(5);if(m1==0);while(!m1);beep=1;delay(100);beep=0;score7+=5;} else if(m2==0){delay(5);if(m2==0);while(!m2);beep=1;delay(100);beep=0;score7-=5;} second=score7; dis(); } elseif(a8==0) { second=score8; dis(); if(m1==0){delay(5);if(m1==0);while(!m1);beep=1;delay(100);beep=0;score8+=5;} else if(m2==0){delay(5);if(m2==0);while(!m2);beep=1;delay(100);beep=0;score8-=5;} second=score8; dis(); } if(k==0){i=0;t=0;second=29;beep=1;delay(500);beep=0;TR0=1;} while(!k); } } } }
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