控制台模拟移动响应客户请求过程

using System;
using System.Windows.Forms;

//控制台模拟移动响应客户请求过程
namespace Test
{
 //定义请求类型
 public enum RequestType
 {
  AddMoney,
  SelectMoney,
  News
 };
 //通知发生了什么类型请求
 public class UserRequestEventArgs:EventArgs
 {
  private RequestType request;

  //构造函数
  public UserRequestEventArgs(RequestType request)
  {
   this.request=request;
  }
  //设置RequestType变量的只读属性
  public RequestType Request
  {
   get
   {
    return this.request;
   }
  }
 }
 //控制台接受用户输入类
 public class UserInput
 {
  public delegate void UserRequest(object sender,UserRequestEventArgs e);
  public event UserRequest OnUserRequest;

  //循环接受用户输入
  public void Run()
  {
   while(true)
   {
    Console.WriteLine("Select what you want to do");
    Console.WriteLine("A:Add money");
    Console.WriteLine("B:Select How many money left");
    Console.WriteLine("C:News");

    string UserInputString=Console.ReadLine();
    char UserInputChar=(UserInputString=="")?""[0]:char.ToUpper(UserInputString[0]);

    switch (UserInputChar)
    {
     case 'A':
      OnUserRequest(this,new UserRequestEventArgs(RequestType.AddMoney));
      break;
     case 'B':
      OnUserRequest(this,new UserRequestEventArgs(RequestType.SelectMoney));
      break;
     case 'C':
      OnUserRequest(this,new UserRequestEventArgs(RequestType.News));
      break;
     default:
      break;
    }
   }
  }
 }
 //反馈给客户端消息内容的类1
 public class MessageDisplay
 {
  public MessageDisplay(UserInput uInput)
  {
   uInput.OnUserRequest += new UserInput.UserRequest(uInput_OnUserRequest);
  }

  private void uInput_OnUserRequest(object sender, UserRequestEventArgs e)
  {
   switch(e.Request)
   {
    case RequestType.AddMoney:
     Console.WriteLine("Custom want add money");
     break;
    case RequestType.SelectMoney:
     Console.WriteLine("Custom want Select how many money left");
     break;
    case RequestType.News:
     Console.WriteLine("News");
     break;
    default:
     break;
   }
  }
 }
 //反馈给客户端消息内容的类2（以此类推，可以为反馈的客户这个事件上加上无穷的动作）
 public class MessageDisplay2
 {
  public MessageDisplay2(UserInput uInput)
  {
   uInput.OnUserRequest +=new UserInput.UserRequest(uInput_OnUserRequest);
  }

  private void uInput_OnUserRequest(object sender, UserRequestEventArgs e)
  {
   if(e.Request==RequestType.News)
   {
    MessageBox.Show("News start...");
   }
  }
 }
 //测试类
 class Test
 {
  [STAThread]
  static void Main(string[] args)
  {
   UserInput uinput=new UserInput();
   MessageDisplay mdisplay=new MessageDisplay(uinput);
   MessageDisplay2 mdisplay2=new MessageDisplay2(uinput);
   uinput.Run();
  }
 }
}