include “reg51.h

#define LED P1
unsigned char code mon51[3]＿at＿ Ox3b;
void main()
{ unsigned int i;
unsigned char LEDOut;
bit Shift=0;
LEDOut=0x01;
while(1)
{LEDOut:
LED=~LEDOut;
for(i=0;i<5000;i++);
if(!Shift) LEDOut<<=1;
else LEDOut<<=1
if( LEDOut==0x80||LEDOut==0x1) Shift＾＝1;
}
}

改成单向流水灯，仿真：STC 51单片机59——这这个程序的基础上改变流水灯的变化，例如一直从左往右依次亮_风雨者13的博客-CSDN博客

变代？什么意思