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編譯結(jié)果是這樣的
*** ERROR L104: MULTIPLE PUBLIC DEFINITIONS
SYMBOL: _DELAYMS
MODULE: part2_7.obj (PART2_7)
*** ERROR L104: MULTIPLE PUBLIC DEFINITIONS
SYMBOL: MAIN
MODULE: part2_7.obj (PART2_7)
*** WARNING L16: UNCALLED SEGMENT, IGNORED FOR OVERLAY PROCESS
SEGMENT: ?PR?MAIN?PART2_7
一臉懵
簡單的抄書上的代碼都這樣，感覺有點小fw,代碼如下
#include<reg52.h>
#include<intrins.h>
#define uint unsigned int
#define uchar unsigned char
void delayms(uint);
uchar aa; //定義一個變量，給P1口賦值
void main()
{
aa=0xfe; //賦初始值
while(1)
{
P1=aa; //點亮第一個發(fā)光管
delayms(500);
aa=_crol_(aa,1); //將aa循環(huán)左移一位后再賦給aa
}
}
void delayms(uint xms)
{
uint i,j;
for(i=xms;i>0;i--)
for(j=110;j>0;j--);
}
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