public static void Main(string[] args)
{
House house = new House { Name="house"};
Display(house);
//UpCasting
Stock msft = new Stock();
Asset a = msft;
if (a == msft)
Console.WriteLine("Identical");
Console.WriteLine(a.Name);
//Console.WriteLine(a.SharesOwned); //Error
//downcasting and as operator
Asset asset = new Asset();
//Stock stock = (Stock)asset; // this will fail at runtime
Stock stock = asset as Stock; // this will not fail but return null and will not give actual casting error
if (stock != null)
Console.WriteLine(stock);
else
Console.WriteLine("stock object is null");
//is operator
if (asset is Stock)
Console.WriteLine("a is stock");
else
Console.WriteLine("a is not stock");
//virtual
Console.Read();
}
private House House; //1、将可能需要的一些别的类的定义在自己的类中，
#endregion Fields
#region Methods
//2、通过动态添加特定的实现了接口House的类，给OuStyle添加特定的实现了House接口的类，
public void AddStyle(House house)
{
this.House = house;
}
public static void Main(string[] args)
{
Stock stock = new Stock { Name = "hdfc", SharesOwned = 100 };
House house = new House { Name = "bac", Mortgage = 100};
Overrider overrider = new Overrider();
BaseClass b = overrider;
b.Foo();
overrider.Foo();
Hider hider = new Hider();
BaseClass b2 = hider;
hider.Foo();
b2.Foo();
Console.Read();
}
