帮忙看下这个程序怎么修改
include <stdio.h>#include <conio.h>
#include <process.h>
int main()
{
system("CLS");
printf("hello, world!\n");
printf("%c", 2);
getch ();
return 0;
}
while(bioskey 1 == 0)
key = bioskey(0);
switch(bioskey)
{
case UP:
statements;
break;
case DOWN;
statements;
break;
case LEFT:
statements;
break;
case RIGHT:
statements;
break;
default:
statements;
break;
}