// Violates this rule
public static Book FromPages(string[] pages)
{
if (pages == null)
throw new ArgumentNullException("pages");
Book book = new Book();
foreach (string page in pages)
{
book.Pages.Add(page);
} return book;
}
public void Remove(Book value)
{
InnerList.Remove(value);
}
public void Insert(int index, Book value)
{
InnerList.Insert(index, value);
}
public int IndexOf(Book value)
{
return InnerList.IndexOf(value);
}
public void CopyTo(Book[] array, int arrayIndex)
{
InnerList.CopyTo(array, arrayIndex);
}
public bool Contains(Book value)
{
return InnerList.Contains(value);
}
public void Add(Book value)
{
InnerList.Add(value);
}
// 打印书名。
private static void PrintTitle(Book b)
{
Console.WriteLine(" {0}", b.Title);
}
internal void AddBookToTotal(Book book)
{
countBooks += 1;
priceBooks += book.Price;
}