【正文】 sw3()。//顯示位 void sw1()。//P2口位選unsigned char code table2[]={0xef,0xdf,0xbf,0x7f}。}}}}第二篇：4路搶答器設計程序include unsigned char code table[]={0xc0,0xf9,0xa4,0xb0，//0~f顯示表0x99,0x92,0x82,0xf8，0x80,0x90,0x88,0x83，0xc6,0xa1,0x86,0x8e}。//xianshi bing sucun}else//bushi dehua flagbianwei 0{flag=0。flag=digitalRead(xuanshou[i])。i{flag=digitalRead(xuanshou[i])。//shezhi yige biaozhi bianliangint i(0)。//shuru chushihuaceshi()。//likai xunhuan}}}}/*************************************/void setup(){shuchushezhi()。//guandiao zhishi dengzhuanhuan(0)。if(f)//fuwei jian anxia{digitalWrite(le,LOW)。if(f)//fangzhidoudong{delay(10)。//zhishidengliangdigitalWrite(fengmingqi,LOW)。//suocundelay(200)。//fengmingqi gongzuozhuanhuan(i)。//shezhi yi ge biaozhi bianliangdigitalWrite(le,LOW)。j{digitalWrite(d[j],ds[j])。}int j。break。ds[2]=0。case 8:ds[0]=0。ds[3]=0。ds[1]=1。break。ds[2]=1。case 6:ds[0]=0。ds[3]=0。ds[1]=0。break。ds[2]=1。case 4:ds[0]=0。ds[2]=0。case 3:ds[0]=1。ds[3]=0。ds[1]=1。break。ds[2]=0。case 1:ds[0]=1。ds[3]=0。ds[1]=0。//quxiao xiaoyindigitalWrite(lt,HIGH)。//xiaoyindelay(200)。}delay(200)。//shumaguan quanliangfor(i=0。digitalWrite(bi,HIGH)。//fuwei}/*************************************/{int i(0)。for(i=0。pinMode(fengmingqi,OUTPUT)。//suocunpinMode(lt,OUTPUT)。//sige shujuduan zhiwei shuchupinMode(bi,OUTPUT)。for(i=0。//zhishidengint fengmingqi=13。//xuanshou int fuwei=10。//xiaoyin duankouint le=5。//si ge jie kou de shujuint lt=3。第一篇：基于aduino的搶答器設計/*QIANG DA QIdisigned by ckj2012/12/8*/int d[4]={7,12,2,6}。//shujuboolean ds[4]={0,0,0,0}。//ceshi shuruduanint bi=4。//suoding kongzhiduanint xuanshou[9]={0,A0,A1,A2,A3,A4,A5,8,9}。int zhishideng=11。//xiang/*************************************/void shuchushezhi()//shezhi duankou wei shuchu {int i(0)。ipinMode(d[i],OUTPUT)。//xiaoyinpinMode(le,OUTPUT)。//dnegceshiduanpinMode(zhishideng,OUTPUT)。}/*************************************/void shurushezhi()//shezhi shuchu duankou{int i(0)。ipinMode(fuwei,INPUT)。digitalWrite(le,LOW)。//quxiao xiaoyindigitalWrite(lt,HIGH)。i{digitalWrite(d[i],ds[i])。digitalWrite(bi,LOW)。digitalWrite(bi,HIGH)。//quxiao quanliang}/*************************************/void zhuanhuan(int i)//shijinzhi zhuan erjinzhi bing shuchu shuju{switch(i){case 0:ds[0]=0。ds[2]=0。break。ds[1]=0。ds[3]=0。case 2:ds[0]=0。ds[2]=0。break。ds[1]=1。break。ds[1]=0。ds[3]=0。case 5:ds[0]=1。ds[2]=1。break。ds[1]=1。ds[3]=0。case 7:ds[0]=1。ds[2]=1。break。ds[1]=0。ds[3]=1。default:break。for(j=0。//shujuduan xieru shuju}}/*************************************/void xianshi(int i)//shezhixianshihanshu{boolean f(0)。//suocun bu gongzuodigitalWrite(fengmingqi,HIGH)。//diaoyong zhuanhuan hanshudigitalWrite(le,HIGH)。//yanshi 200 haomiaodigitalWrite(zhishideng,HIGH)。//fengmingqi guanbiwhile(!f)//meiyou an fuwei jianshi yizhi xunhuan{f=digitalRead(fuwei)。f=digitalRead(fuwei)。//guandiaosuocundigitalWrite(zhishideng,LOW)。//xianshi0break。//shuchu chushihuashurushezhi()。//ceshi yixia shumaguan}/*************************************/void loop(){boolean flag(0)。//shezhi yi ge zhongjian bianliangfor(i=1。//jiancha shi fou you xuanshou anxia jianif(flag)//ruguo youren an anjian{delay(10)。//fangzhi doudongif(flag)//ruguo zhende anxiaqule{xianshi(i)。//biaoshi bian wei