virtual1.cs

深入浅出C＃,学习C#比较好的用例,能够很快掌握C#.

using System;
class MyClass
{
	public virtual void F()//定义一个虚方法
	{
		Console.WriteLine("MyClass.F()");
	}
}
class Drived:MyClass
{
	public override void F()//覆盖基类中的虚方法
	{
		Console.WriteLine("Drived.F()");
	}
}
class Test
{
	public static void Main()
	{
		Drived drived=new Drived();
		MyClass myclass=drived;
		myclass.F();
		drived.F();
	}
}