状态机 - State Machine! C#.Net模拟电梯控制系统！

/// <summary>
/// 表示状态的接口
/// </summary>
public interface IElevatorState
{
   void OpenDoor(); //开电梯门
   void CloseDoor(); //关门
   void Run(); //电梯运行(升/降)
}


// 来源:www.CSFramework.com, C/S结构框架学习网

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace StateMachine
{
   public partial class frmTest : Form
   {
      public frmTest()
      {
         InitializeComponent();
      }
      
      private void button4_Click(object sender, EventArgs e)
      {
         listBox1.Items.Clear();
      }
      
      private void button1_Click(object sender, EventArgs e)
      {
         ElevatorController ec = new ElevatorController(this.listBox1);
         ec.WriteLog("...测试打开电梯门...");
         
         ec.SetCurrentState(ec.StateRunning);
         ec.OpenDoor();//测试打开电梯门
         
         ec.SetCurrentState(ec.StateDoorOpening);
         ec.OpenDoor();//测试打开电梯门
         
         ec.SetCurrentState(ec.StateDoorOpened);
         ec.OpenDoor();//测试打开电梯门
         
         ec.SetCurrentState(ec.StateDoorClosing);
         ec.OpenDoor();//测试打开电梯门
         
         ec.SetCurrentState(ec.StateDoorClosed);
         ec.OpenDoor();//测试打开电梯门
         
      }
      
      private void button2_Click(object sender, EventArgs e)
      {
         ElevatorController ec = new ElevatorController(this.listBox1);
         ec.WriteLog("...测试关闭电梯门...");
         
         ec.SetCurrentState(ec.StateRunning);
         ec.CloseDoor();//测试关闭电梯门
         
         ec.SetCurrentState(ec.StateDoorOpening);
         ec.CloseDoor();//测试关闭电梯门
         
         ec.SetCurrentState(ec.StateDoorOpened);
         ec.CloseDoor();//测试关闭电梯门
         
         ec.SetCurrentState(ec.StateDoorClosing);
         ec.CloseDoor();//测试关闭电梯门
         
         ec.SetCurrentState(ec.StateDoorClosed);
         ec.CloseDoor();//测试关闭电梯门
      }
      
      private void button3_Click(object sender, EventArgs e)
      {
         ElevatorController ec = new ElevatorController(this.listBox1);
         ec.WriteLog("...测试运行电梯...");
         
         ec.SetCurrentState(ec.StateRunning);
         ec.Run();//测试运行电梯
         
         ec.SetCurrentState(ec.StateDoorOpening);
         ec.Run();//测试运行电梯
         
         ec.SetCurrentState(ec.StateDoorOpened);
         ec.Run();//测试运行电梯
         
         ec.SetCurrentState(ec.StateDoorClosing);
         ec.Run();//测试运行电梯
         
         ec.SetCurrentState(ec.StateDoorClosed);
         ec.Run();//测试运行电梯
      }
   }
}


// 来源:www.CSFramework.com, C/S结构框架学习网

public class StateRunning : IElevatorState
{
   private ElevatorController _ec;
   
   public StateRunning(ElevatorController ec)
   {
      _ec = ec;
   }
   
   public void OpenDoor()
   {
      _ec.WriteLog("StateRunning.OpenDoor():[方法无效]不要命啦!电梯在升降中,不能开门!!!");
   }
   
   public void CloseDoor()
   {
      _ec.WriteLog("StateRunning.CloseDoor():[方法无效]电梯在运行,门已经是状态状态!!!");
   }
   
   public void Run()
   {
      _ec.WriteLog("StateRunning.Run():[方法无效]电梯已经在运行状态!!!");
   }
   
}

// 来源:www.CSFramework.com, C/S结构框架学习网

public class StateDoorClosed : IElevatorState
{
   private ElevatorController _ec;
   
   public StateDoorClosed(ElevatorController ec)
   {
      _ec = ec;
   }
   
   public void OpenDoor()
   {
      _ec.WriteLog("StateDoorClosed.OpenDoor():正在关电梯门...");
      
      _ec.SetCurrentState(_ec.StateDoorOpening);
   }
   
   public void CloseDoor()
   {
      _ec.WriteLog("StateDoorClosed.CloseDoor():[方法无效]:因电梯门已经是关闭状态!");
   }
   
   public void Run()
   {
      _ec.SetCurrentState(_ec.StateRunning);
      _ec.WriteLog("StateDoorClosed.Run():正在启动电梯, 进入升降程序...");
      
      if (_ec.IsUp)
      _ec.WriteLog("StateDoorClosed.Run():电梯进入上升状态中...");
      else if (_ec.IsDown)
      _ec.WriteLog("StateDoorClosed.Run():电梯进入下降状态中...");
   }
   
}

// 来源:www.CSFramework.com, C/S结构框架学习网