使發光二極管循環點亮？

#include

#define LED P1 //宏定義,使用LED代替P1口(相當于LED=P1)

#define uchar unsigned char //用uchar代替unsigned char方便操作

#define uint unsigned int

/*------------------time ms延時函數-----------------*/

void delay_ms(uint time)

{

uchar tres;

for(;time>0;time--)

{

tres=150;

while(tres--);

}

}

void main()

{

uchar t;

LED=0X01;//P1=00000001B

while(1)//死循環,不停的點亮和熄滅LED

{

for(t=0;t

{

LED=~LED;//按位取反,點亮一個LED

delay_ms(100);//延時0.1s

LED=~LED;//按位取反

LED

}

LED=0X80;//P1=10000000B

for(t=0;t

{

LED=~LED;//按位取反,點亮一個LED

delay_ms(100);//延時0.1s

LED=~LED;//按位取反

LED>>=1;//右移一位,點亮不同的LED

}

LED=0X01;//P1=00000001B

}

}