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 4856| 3
 
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请问怎么实现guang==0时电机正转guang==1时电机反转 | 
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6金钱 
 最佳答案#include
#define uchar unsigned char
#define uint unsigned int
sbit guang=P1^0;
void delay(uint z)
{
 uint x,y;
 for(x=z;x>0;x--)
 for(y=110;y>0;y--);
 }
 void main()
 {
  if(guang==0)
    P2=0x80;
    delay(200)
	break;
  if(guang==1)
     P2=0x40;
	 delay(200);
	 break;
  }哪里不对啊 
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