class1.cs

来自「C#2005 实例源代码」· CS 代码 · 共 73 行

using System;

namespace Example_Polymophisn
{

	/// <summary>
	/// 抽象类：运动员
	/// </summary>
	public abstract class Player
	{
		/// <summary>
		/// 抽象方法：训练
		/// </summary>
		public abstract void Train();
	}

	/// <summary>
	/// 篮球运动员
	/// </summary>
	public class BasketballPlayer : Player
	{
		public override void Train()
		{
			Console.WriteLine("Basketball players are training...");
		}
	}

	/// <summary>
	/// 足球运动员
	/// </summary>
	public class FootballPlayer : Player
	{
		public override void Train()
		{
			Console.WriteLine("Football players are training...");
		}
	}

	/// <summary>
	/// 游泳运动员
	/// </summary>
	public class SwimPlayer : Player
	{
		public override void Train()
		{
			Console.WriteLine("Swim players are training...");
		}
	}

	/// <summary>
	/// Class1 的摘要说明。
	/// </summary>
	class Class1
	{
		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main(string[] args)
		{
			Player p;
			p=new BasketballPlayer();
			p.Train();

			p=new FootballPlayer();
			p.Train();

			p=new SwimPlayer();
			p.Train();
		}
	}
}