/// <summary>
/// Метод, подсчитывающий, сколько коллекционных книг выпустило издательство
/// </summary>
/// <param name="office">Издательство</param>
/// <returns></returns>
private static int countCollectionBooks(IPublishingOffice <IBook> office)
{
int num = 0;
foreach (IBook book in office)
{
if (book.CostPrice > 1000)
{
num++;
}
}
return(num);
}
public PublishingOfficeEnumerator(IPublishingOffice <T> office)
{
this.office = office;
currIndex = -1;
currBook = default(T);
}
