单片机（51） 花样霓虹灯

#include #include  void delay(unsigned int i){   while(i--);  }  void move_left(unsigned char p){   unsigned char i;   P1=p;   for(i=0;i<8;i  ){    delay(20000);    P1=_crol_(P1,1);   }  }  void move_right(unsigned char p){   unsigned char i;   P1=p;   for(i=0;i<8;i  ){    delay(20000);    P1=_cror_(P1,1);   }  }  void move_middle(unsigned char p){   unsigned char i;   for(i=0;i<4;i  ){    P1=((p<>i));    delay(20000);   }  }  void move_out(unsigned char p){   unsigned char i;   for(i=0;i<4;i  ){    P1=((p<>i);    delay(20000);   }  }    void main(){    while(1){     move_left(0xfe);///单灯流动     move_right(0x7f);     move_left(0xfc);///双灯流动     move_right(0x3f);     move_middle(0x7e);     move_out(0xe7);    }   }

内向外和从外向内通过逻辑或LED灯同时流动