帮我填空啊
#include <stdio.h>#include <conio.h>
void main( )
{
int num,k;
/************found************/
_____(1)_____;
printf("Please enter a number:") ;
scanf("%d",&num) ;
do
{ k*=num%10 ;
/************found************/
_____(2)____;
} while(num) ;
printf("\n%d\n",k) ;
}