求助简单的51单片机端口问题

#include<stc15.h>
#include<intrins.h>
#include<gpio.h>
#define uchar unsigned char
#define uint unsigned int
#include<Delay.c>

uchar code SEG[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x77,0x7C,0x39,0x5E,0x79,0x71,0x00};
uchar code scan_bit[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};          //λѡ￡¬Î»¿ØÖÆÂë￡¬¿ØÖÆÄ3¸öêyÂë1üμÄááÃe
uchar data Dis_buf[]={0,1,2,3,4,5,6,7};         //ÏÔê¾»o3åÇø

void main()
{
    P2^0=0;
    P2^1=0;
    uint i;
    gpio();
    while(1)
    {
        for(i=0;i<8;i++)
        {
            P0=SEG[Dis_buf[i]];
            Delayxms(100);
        }
    }
}