internal void AddBookToTotal( Book book )
{
countBooks += 1;
priceBooks += book.Price;
}
static void PrintTitle(Book b) // Печать названия книги.
{
Console.WriteLine(" {0}", b.Title);
}
// Print the title of the book.
static void PrintTitle( Book b )
{
Console.WriteLine( " {0}", b.Title );
}
public void OrderBook(Book book, int copies)
{
//###
}