usevirtual.cs

vc的原码例子12 vc的原码例子12

class clsTheBaseClass
{
	public clsTheBaseClass(string Info)
	{
		Text = Info;
	}

	public virtual void ShowInfo()
	{
		System.Console.WriteLine(Text);
	}

	protected string Text;
};


class clsDerivedA : clsTheBaseClass
{
	public clsDerivedA(string data) : base(data)
{
		
}

	public override void ShowInfo()
	{
                System.Console.WriteLine("In Overridden function: {0}", Text);
	}
};

class clsDerivedB : clsTheBaseClass
{
	public clsDerivedB(string data) : base(data)
	{
		
	}

};

class clsUseVirtual
{
	static void Main()
	{
		clsDerivedA A = new clsDerivedA("Class A");
		clsDerivedB B = new clsDerivedB("Class B");
   
		A.ShowInfo();
		B.ShowInfo();
	}
}