c51单片机交通灯程序(共2页).doc

#includevoid delay(int m) /unsigned char s;for(;m0;m-)for(s=124;s0;s-);void main() unsigned char code table10=0xc0,0xf9,0xa4,0xb0,0x99,0x92, 0x82,0xf8,0x80,0x90;/共阳unsigned int i;while(1)P1=0xf3;/绿5for(i=5;i0;i-) P0=tablei; P2=tablei+3; delay(6000); for(i=3;i0;i-)/黄3 P1=0xf5;/1111 0101; P0=tablei; P2=tablei; delay(500); P1=0xf7;/1111 0111; P0=tablei; P2