//用kbhit()函数
#include
#include
void main( void )
{
int i = 1;
int j;
while(i++)
{
if(i==10000)
{ printf("1"); i=1;}
if(kbhit())
{
if(getch()==224)
{
j=getch();
if(j==72) printf("\nup");
if(j==80) printf("\ndown");
if(j==75) printf("\nleft");
if(j==77) printf("\nright");
printf( " was pressed\n");}
}
}
}
//up
//72 80 75 77