#include<reg52.h>
#include <intrins.h>
#define uint unsigned int
#define uchar unsigned char
uchar temp;
void delay(uint);
void main()
{temp=0xfe;
P0=temp;
while(1)
{ temp=_crol_(temp,1);
delay(500);
P0=temp;
}
}
错一:void delay(uint);有错,void delay(uint time_len);
错二:没有延时函数
还有,顺序有点乱。
P0=temp;
while(1)
{ temp=_crol_(temp,1);
delay(500);
P0=temp;
}
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