只可远观,不可亵玩

#include"reg51.h" unsigned int a,i,s,t,m,n=1,ii,aa; //设置 unsigned int cshi=30;//秒数 unsigned int jge=5;//延时 //red sbit red1 = P1^0; sbit red2 = P1^5; //green sbit green1 = P1^2; sbit green2 = P1^3; //yellow sbit yellow1 = P1^1; sbit yellow2 = P1^4; //延时函数 void Delay(s){ while(s--){ t = 10000; while(t--); } } //yellow void rygcx(e,f){ e %= 2; if(f<=3){ yellow2 = yellow1 = green2 = green1 = 1; Delay(jge); yellow1 = ~e; yellow2 = ~yellow1; }else{ yellow2 = yellow1 = 1; green1 = ~e; green2 = ~green1; red1 = e; red2 = ~red1; } Delay(jge); } //跑初始值 void chushi(e){ ii = 0x00; for(a=e-1;;a--){ if(a==e){m=1;}else{m=a%10;} if(m==0){ii+=7;}else{ii++;} if(a==0){break;} } } void main(){ chushi(cshi); while(1){ m = 0; i = ii; rygcx(--n,cshi); for(a=cshi;;a--){ m=a%10; P2 = i; rygcx(n,a); if(m==0){i-=7;}else{i--;} if(a==0){break;} } } }
8051-交通灯
近期评论