static void Main() // Выполнение начинается здесь.
{
BookDB bookDB = new BookDB();
AddBooks(bookDB); // Инициализация базы данных с использованием нескольких книг:
Console.WriteLine("Paperback Book Titles:"); // Печать названий всех книг в бумажной обложке:
// Создание нового объекта делегата, связанного со статическим методом Test.PrintTitle:
bookDB.ProcessPaperbackBooks(new ProcessBookDelegate(PrintTitle));
// Получение средней цены книги в бумажной обложке при помощи объекта PriceTotaller:
PriceTotaller totaller = new PriceTotaller();
// Создание нового объекта-делегата, связанного с нестатическим объектом
// методом AddBookToTotal объекта суммарных показателей:
bookDB.ProcessPaperbackBooks(new ProcessBookDelegate(totaller.AddBookToTotal));
Console.WriteLine("Average Paperback Book Price: ${0:#.##}", totaller.AveragePrice() );
}
// Execution starts here.
static void Main( )
{
BookDB bookDB = new BookDB( );
// Initialize the database with some books:
AddBooks( bookDB );
// Print all the titles of paperbacks:
Console.WriteLine( "Paperback Book Titles:" );
// Create a new delegate object associated with the static
// method Test.PrintTitle:
bookDB.ProcessPaperbackBooks( new ProcessBookDelegate( PrintTitle ) );
// Get the average price of a paperback by using
// a PriceTotaller object:
PriceTotaller totaller = new PriceTotaller( );
// Create a new delegate object associated with the nonstatic
// method AddBookToTotal on the object totaller:
bookDB.ProcessPaperbackBooks( new ProcessBookDelegate( totaller.AddBookToTotal ) );
Console.WriteLine( "Average Paperback Book Price: ${0:#.##}",
totaller.AveragePrice( ) );
}
// Initialize the book database with some test books:
static void AddBooks( BookDB bookDB )
{
bookDB.AddBook( "The C Programming Language",
"Brian W. Kernighan and Dennis M. Ritchie", 19.95m, true );
bookDB.AddBook( "The Unicode Standard 2.0",
"The Unicode Consortium", 39.95m, true );
bookDB.AddBook( "The MS-DOS Encyclopedia",
"Ray Duncan", 129.95m, false );
bookDB.AddBook( "Dogbert's Clues for the Clueless",
"Scott Adams", 12.00m, true );
}
static void AddBooks(BookDB bookDB) // Инициализация базы данных книг с использованием нескольких тестовых книг:
{
bookDB.AddBook("The C Programming Language", "Brian W. Kernighan and Dennis M. Ritchie", 19.95m, true);
bookDB.AddBook("The Unicode Standard 2.0", "The Unicode Consortium", 39.95m, true);
bookDB.AddBook("The MS-DOS Encyclopedia", "Ray Duncan", 129.95m, false);
bookDB.AddBook("Dogbert's Clues for the Clueless", "Scott Adams", 12.00m, true);
}
// 下面开始执行。
static void Main()
{
BookDB bookDB = new BookDB();
// 用一些书初始化数据库：
AddBooks(bookDB);
// 打印所有平装本的书名：
Console.WriteLine("Paperback Book Titles:");
// 创建一个与静态方法 Test.PrintTitle 关联的
// 新委托对象：
bookDB.ProcessPaperbackBooks(new ProcessBookDelegate(PrintTitle));
// 使用 PriceTotaller 对象
// 获取平装本的平均价格：
PriceTotaller totaller = new PriceTotaller();
// 创建一个与对象 totaller 的非静态方法
// AddBookToTotal 关联的新委托对象：
bookDB.ProcessPaperbackBooks(new ProcessBookDelegate(totaller.AddBookToTotal));
Console.WriteLine("Average Paperback Book Price: ${0:#.##}",
totaller.AveragePrice());
}
static void Main()
{
BookDB bookDB = new BookDB();
AddBooks(bookDB);
Console.WriteLine("Paperback Book Titles:");
bookDB.ProcessPaperbackBooks(new ProcessBookDelegate(PrintTitle));
PriceTotaller totaller = new PriceTotaller();
bookDB.ProcessPaperbackBooks(new ProcessBookDelegate(totaller.AddBookToTotal));
Console.WriteLine("Average Paperback Book Price: ${0:#.##}", totaller.AveragePrice());
Console.ReadLine();
}
