واجهة بسيطة في VC++6

thats simple a switch loop will do here try this :-

int main(int argc, char* argv[])
{
	int i=0;
	printf("1- Add\n2- Update\n3- Search\n4- Delete\n5- whatever\n6- exit\n");
	scanf("%d",&i);
	while(i >6||i<1)
	{
  printf("wrong selection \n");
  scanf("%d",&i);
	}
	switch(i)
	{
	case 1:
  //do somthing here
  break;
	case 2:
  //same here
  break;

	//case ...  other cases here
	//case ...

	case 6:
  break;

	default:
  printf("wrong selection");
  
	}
	return 0;
}

you can consider this just as a frame it need more code so start writing