Question

求C语言大神，这段程序有什么问题？ps：这是用51单片机时的程序

#include<reg51.h>
#include<intrins.h>
#define uint unsigned int
#define uchar unsigned char
uchar temp;
void delay(uint)
void main()
{
temp=0xfe;
P1=temp;
while(1)
{
temp=_crol_(temp,1);
delay(100);
P1=temp;
}
}
void delay(uint z)
{
uint x,y;
for(x=100;x>0;x--)
for(y=z;y>0;y--);
}

Answer 1

#include<intrins.h>
#define uint unsigned int
#define uchar unsigned char
uchar temp;
void delay(uint)这里没有分号“;”在定义函数原型的时候，最后需要加分号

Answer 2

#include<reg52.h>
#include<intrins.h>
#define uint unsigned int
#define uchar unsigned char
void delayms(uint);
uchar aa;
void main()
{
aa=0xfe;
while(1)
{
P1=aa;
delayms(500);
aa=_crol_(aa,1);
}
}
void delayms(uint xms)
{
uint i,j;
for(i=xms;i>0;i--)
for(j=110;j>o;j--);