Keli编程一直有错，说P1未定义和Target not created

Question

C语言前两行我的为什么只有include变色，我点编译为什么一直说我P1未定义，且一直说Target not created

Answer 1

#include <reg51.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
void delay(uint i)
{
    uchar t;
    while(i--)
    {
        for(t=0;t<120;t++);
    }
}
void main()
{ 
    uchar i,temp;
    while(1)
    {
        temp = 0xfe;
        for(i=0;i<8;i++)
        {
            P1=temp;
            delay(500);
            temp =_crol_(temp,1);
        }
    }
}