大佬们帮忙看一下，这个程序哪里出问题了，怎么一直编译不过

#include <REGX52.H>
unsigned char NixieTable []={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}
void Delay (unsigned int xms)
{
unsigned char i, j;
while(xms--)
{
i = 2;
j = 239;
do
{
while (--j);
} while (--i);
}
}
void Nixie(unsigned char Location,Number)
{
switch(Location)
{
case 1:P2_4=1;P2_3=1;P2_2=1;break;
case 2:P2_4=1;P2_3=1;P2_2=0;break;
case 3:P2_4=1;P2_3=0;P2_2=1;break;
case 4:P2_4=1;P2_3=0;P2_2=0;break;
case 5:P2_4=0;P2_3=1;P2_2=1;break;
case 6:P2_4=0;P2_3=1;P2_2=0;break;
case 7:P2_4=0;P2_3=0;P2_2=1;break;
case 8:P2_4=0;P2_3=0;P2_2=0;break;
}
P0=NixieTable[Number];
Delay(1);
P0=0x00;
}
void main()
{
while(1)
{
Nixie(1,1);
Nixie(2,2);
Nixie(3,3);
}
}