base.cs

画图的作用 以及其他的类似图型转换的

using System;

namespace chapter3
{
	/// <summary>
	/// Base 的摘要说明。
	/// </summary>
	public class Base
	{
		public void Display()
		{
			Console.WriteLine("Display in base ");
		}
		public  virtual void Print()
		{
			Console.WriteLine("Print in base");
		}
	}
	public class Derived :Base
	{
		new public void Display()
		{
			Console.WriteLine("Display in derived");
		}
		public override void Print()
		{
			Console.WriteLine("Print in Derived");
		}
	}
	public class Sun :Derived
	{
		new public void Display()
		{
			Console.WriteLine("Display in sun");
		}
		public override void Print()
		{
			Console.WriteLine("Print in sun");
		}
	}
}