八路抢答器c语言程序.doc

/按钮P1；灯P0；数码管P2; P30主持人控制开关#include#define uc unsigned charsbit li1=P00;sbit li2=P01;sbit li3=P02;sbit li4=P03;sbit li5=P04;sbit li6=P05;sbit li7=P06;sbit li8=P07; /定义灯sbit key1=P10;sbit key2=P11;sbit key3=P12;sbit key4=P13;sbit key5=P14;sbit key6=P15;sbit key7=P16;sbit key8=P17; /定义按钮sbit zhuchi=P30;uc code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;void delay(uc xms);void main()P2=0x00; /共阴数码管全灭 while(1) if(key1=0) /选手1 delay(10);/去抖延时 if(key1=0) P2=table1;li1=0; while(1) if(zhuchi=0) delay(10); if(zhuchi=0) P2=0x00;li1=1;break; /选手1 if(key2=0) /选手2 delay(10);/去抖延时 if(key2=0) P2=table2;li2=0; while(1) if(zhuchi=0) delay(10); if(zhuchi=0) P2=0x00;li2=1;break; /选手2 if(key3=0) /选手3 delay(10);/去抖延时 if(key3=0) P2=table3;li3=0; while(1) if(zhuchi=0) delay(10); if(zhuchi=0) P2=0x00;li3=1;break; /选手3 if(key4=0) /选手4 delay(10);/去抖延时 if(key4=0) P2=table4;li4=0; while(1) if(zhuchi=0) delay(10); if(zhuchi=0) P2=0x00;li4=1;break; /选手4 if(key5=0) /选手5 delay(10);/去抖延时 if(key5=0) P2=table5;li5=0; while(1) if(zhuchi=0) delay(10); if(zhuchi=0) P2=0x00;li5=1;break; /选手5 if(key6=0) /选手6 delay(10);/去抖延时 if(key6=0) P2=table6;li6=0; while(1) if(zhuchi=0) delay(10); if(zhuchi=0) P2=0x00;li6=1;break; /选手6 if(key7=0) /选手7 delay(10);/去抖延时 if(key7=0) P2=table7;li7=0; while(1) if(zhuchi=0) delay(10); if(zhuchi=0) P2=0x00;li7=1;break; /选手7 if(key8=0) /选手8 delay(10);/去抖延时 if(key8=0) P2=table8;li8=0; while(1) if(zhuchi=0) delay(10); if(zhuchi=0) P2=0x00;li8=