适配器模式 c#

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

namespace ConsoleApplication1
{
class Program
{
/// <summary>
/// 用户想要的接口
/// </summary>
public abstract class User
{
public abstract void Request();
}

/// <summary>
/// 真实需求
/// </summary>
public class Adaptee
{
public void TrueReqest()
{
Console.WriteLine("this is the true request");
}
}

/// <summary>
/// 接口适配类
/// </summary>
public class Adapter : User
{
private readonly Adaptee adaptee = new Adaptee();
public override void Request()
{
adaptee.TrueReqest();
}
}

static void Main(string[] args)
{
User user = new Adapter();
user.Request();
}
}
}