static void Main()
{
Originator originator = new Originator();
originator.State = "On";
// Store internal state
Caretaker caretaker = new Caretaker();
caretaker.Memento = originator.CreateMemento();
originator.State = "Off";
originator.SetMemento(caretaker.Memento);
}
static void Main(string[] args) {
IList<Originator.Momento> savedStates = new List<Originator.Momento>();
var originator = new Originator();
originator.SetState("State1");
originator.SetState("State2");
savedStates.Add(originator.SaveToMomento());
originator.SetState("State3");
savedStates.Add(originator.SaveToMomento());
originator.SetState("State4");
originator.RestoreFromMomento(savedStates[0]);
Console.ReadKey();
}
static void Main()
{
Originator o = new Originator();
o.State = "On";
Caretaker c = new Caretaker();
c.Memento = o.CreateMemento();
o.State = "Off";
o.SetMemento(c.Memento);
Console.ReadKey();
}
static void Main(string[] args)
{
// 打王前
GameRole character = new GameRole();
character.GetInitState();
character.StateDisplay();
// 保存進度
RoleStateCaretaker stateAdmin = new RoleStateCaretaker();
stateAdmin.Memento = character.SaveState();
// 打王
character.Fight();
character.StateDisplay();
// 讀取檔案
character.RecoveryState(stateAdmin.Memento);
character.StateDisplay();
Console.WriteLine();
Originator originator = new Originator();
// 狀態初始屬性為On
originator.State = "On";
originator.Show();
CareTaker careTaker = new CareTaker();
// 保存狀態時，由於有了很好的封裝，可以隱藏Originator的實現細節
careTaker.Memento = originator.CreateMemento();
// 狀態屬性改為Off
originator.State = "Off";
originator.Show();
// 恢復原初始狀態
originator.SetMemento(careTaker.Memento);
originator.Show();
Console.ReadLine();
}
static void Main(string[] args)
{
Caretaker caretaker = new Caretaker();
Originator originator = new Originator(new Laptop("Acer Nitro 5", 15.6, "Intel Core i5"));
Console.WriteLine(originator);
caretaker.AddMemento(originator.Save());
originator.SetLaptop(new Laptop("Apple MacBook 2020", 17, "Apple M1"));
Console.WriteLine(originator);
caretaker.AddMemento(originator.Save());
originator.Restore(caretaker.GetMemento(0));
Console.WriteLine(originator);
}
static void Main(string[] args)
{
Originator originator = new Originator();
CareTaker careTaker = new CareTaker();
originator.State = "State #1";
originator.State = "State #2";
careTaker.Add(originator.SaveStateToMemento());
originator.State = "State #3";
careTaker.Add(originator.SaveStateToMemento());
originator.State = "State #4";
Console.WriteLine("Current State: " + originator.State);
originator.GetStateFromMemento(careTaker.Get(0));
Console.WriteLine("First saved State: " + originator.State);
originator.GetStateFromMemento(careTaker.Get(1));
Console.WriteLine("Second saved State: " + originator.State);
Console.ReadKey();
}
/// <summary>
/// Entry point into console application.
/// </summary>
static void Main()
{
Originator o = new Originator();
o.State = "On";
// Store internal state
Caretaker c = new Caretaker();
c.Memento = o.CreateMemento();
// Continue changing originator
o.State = "Off";
// Restore saved state
o.SetMemento(c.Memento);
// Wait for user
Console.ReadKey();
}
static void Main(string[] args)
{
Originator originator = new Originator();
CareTaker careTaker = new CareTaker();
originator.State = "State1";
originator.State = "State2";
originator.State = "State3";
careTaker.Add(originator.SaveStateToMemento());
originator.State = "State4";
careTaker.Add(originator.SaveStateToMemento());
Console.WriteLine(originator.GetStateFromMemento(careTaker.Get(0)));
Console.WriteLine(originator.GetStateFromMemento(careTaker.Get(1)));
Console.ReadLine();
}
static void Main(string[] args)
{
Originator o = new Originator();
o.State = "On"; //Originator初始状态为 “On”
o.Show();
Caretaker c = new Caretaker();
c.Memento = o.CreateMemento();
o.State = "Off"; //改变状态属性
o.Show();
o.SetMemento(c.Memento); // 通过备忘录恢复初始状态
o.Show();
Console.Read();
}
static void Main()
{
IOriginator originator = new Originator("", "Arial", "10");
var restorePoints = new List <IDocumentMemento> {
originator.CreateRestorePoint()
};
originator.GoToStep1();
restorePoints.Add(originator.CreateRestorePoint());
Console.WriteLine(originator.GetStateAsString());
originator.GoToStep2();
restorePoints.Add(originator.CreateRestorePoint());
Console.WriteLine(originator.GetStateAsString());
originator.Restore(restorePoints.Skip(1).First());
Console.WriteLine(originator.GetStateAsString());
}
static void Main(string[] args)
{
Originator originator = new Originator();
originator.State = "On";
Console.WriteLine(originator.State);
Caretaker caretaker = new Caretaker();
caretaker.Memento = originator.CreateMemento();
originator.State = "Off";
Console.WriteLine(originator.State);
originator.SetMemento(caretaker.Memento);
Console.WriteLine(originator.State);
Console.Read();
}
public static void Main(string[] args)
{
var originator = new Originator();
var state = "ON";
originator.SetState(state);
var caretaker = new Caretaker();
caretaker.SetMemento(originator.CreateMemento());
state = "OFF";
originator.SetState(state);
originator.RestoreMemento(caretaker.Memento);
Console.ReadKey();
}
public static void Run()
{
Originator originator = new Originator();
originator.ledTV = new LEDTV("42 inch", "60000Rs", false);
Caretaker caretaker = new Caretaker();
caretaker.AddMemento(originator.CreateMemento());
originator.ledTV = new LEDTV("46 inch", "80000Rs", true);
caretaker.AddMemento(originator.CreateMemento());
originator.ledTV = new LEDTV("50 inch", "100000Rs", true);
Console.WriteLine("\nOrignator current state : " + originator.GetDetails());
Console.WriteLine("\nOriginator restoring to 42 inch LED TV");
originator.ledTV = caretaker.GetMemento(0).ledTV;
Console.WriteLine("\nOrignator current state : " + originator.GetDetails());
Console.ReadKey();
}
static void Main(string[] args)
{
#region 基本用法（Basic.cs）
Originator o = new Originator();
//Originator初始状态，状态属性为“On”
o.State = "On";
o.Show();
Caretaker c = new Caretaker();
//保存状态时，由于有了很好的封装，可以隐藏Originator的实现细节
c.Memento = o.CreateMemento();
//Originator改变了状态属性为“Off”
o.State = "Off";
o.Show();
//恢复原初始状态
o.SetMemento(c.Memento);
o.Show();
#endregion
#region 具体实例（Example.cs）
//大战Boss前
GameRole lixiaoyao = new GameRole();
lixiaoyao.GetInitState();
lixiaoyao.StateDisplay();
//保存进度
RoleStateCaretaker stateAdmin = new RoleStateCaretaker();
stateAdmin.Memento = lixiaoyao.SaveState();
//大战Boss时，损耗严重
lixiaoyao.Fight();
lixiaoyao.StateDisplay();
//恢复之前的状态
lixiaoyao.RecoveryState(stateAdmin.Memento);
lixiaoyao.StateDisplay();
Console.Read();
#endregion
}
static void Main(string[] args)
{
#region 基本用法（Basic.cs）
Originator o = new Originator();
//Originator初始状态，状态属性为“On”
o.State = "On";
o.Show();
Caretaker c = new Caretaker();
//保存状态时，由于有了很好的封装，可以隐藏Originator的实现细节
c.Memento = o.CreateMemento();
//Originator改变了状态属性为“Off”
o.State = "Off";
o.Show();
//恢复原初始状态
o.SetMemento(c.Memento);
o.Show();
#endregion
#region 具体实例（Example.cs）
//大战Boss前
GameRole lixiaoyao = new GameRole();
lixiaoyao.GetInitState();
lixiaoyao.StateDisplay();
//保存进度
RoleStateCaretaker stateAdmin = new RoleStateCaretaker();
stateAdmin.Memento = lixiaoyao.SaveState();
//大战Boss时，损耗严重
lixiaoyao.Fight();
lixiaoyao.StateDisplay();
//恢复之前的状态
lixiaoyao.RecoveryState(stateAdmin.Memento);
lixiaoyao.StateDisplay();
Console.Read();
#endregion
}
//Caretaker
static void Main(string[] args)
{
List <Memento> savedStates = new List <Memento>();
Originator originator = new Originator();
originator.SetState("State1");
savedStates.Add(originator.Create());
originator.SetState("State2");
originator.SetState("State3");
savedStates.Add(originator.Create());
originator.SetState("State4");
foreach (var state in savedStates)
{
originator.Restore(state);
}
}
static void Main(string[] args)
{
Originator ori = new Originator();
ori.State = "On";
ori.Show();
Caretaker c = new Caretaker();
c.Memento = ori.CreateMemento();
ori.State = "Off";
ori.Show();
ori.SetMemento(c.Memento);
ori.Show();
Console.ReadKey();
}
static void Main(string[] args)
{
//Ponto de entrada..
Originator o = new Originator();
o.State = "On";
//Armazenando o estado..
Caretaker c = new Caretaker();
c.Memento = o.CreateMemento();
//Modificando o estado..
o.State = "Off";
//Voltando o estado armazenado..
o.SetMemento(c.Memento);
Console.ReadKey();
}
static void Main(string[] args)
{
Originator o = new Originator();
o.State = "On";
// Store internal state
Caretaker c = new Caretaker();
c.Memento = o.CreateMemento();
// Continue changing originator
o.State = "Off";
// Restore saved state
o.SetMemento(c.Memento);
// Wait for user
Console.ReadKey();
}
static void Main(string[] args)
{
var originator = new Originator {
State = "State A"
};
Console.WriteLine(originator.State);
var memento = originator.CreateMemento();
var caretaker = new Caretaker {
Memento = memento
};
originator.State = "State B";
Console.WriteLine(originator.State);
originator.SetMemento(caretaker.Memento);
Console.WriteLine(originator.State);
Console.Read();
}
public static void Main()
{
Originator originator = new Originator();
CareTaker careTaker = new CareTaker();
originator.ChangeState(new State("状态一"));
originator.ChangeState(new State("状态二"));
//存储当前状态
string key = originator.GetState().name;
careTaker.AddMemento(key, originator.CreateMemento());
originator.ChangeState(new State("状态三"));
//恢复到之前备份的某一状态
originator.RestoreFromMemento(careTaker.GetMemento(key));
Debug.Log("目前状态：" + originator.GetState().name);
}
static void Main(string[] args)
{
// Implementation example from GOF book, pg 287
var mementoes = new Stack <Originator.Memento>();
var originator = new Originator();
Console.WriteLine("Initial state:");
originator.Print();
mementoes.Push(originator.CreateMemento());
originator.Update();
Console.WriteLine($"State @ {DateTime.Now}:");
originator.Print();
originator.SetMemento(mementoes.Pop());
Console.WriteLine("Restored initial state:");
originator.Print();
Console.ReadLine();
}
static void Main()
{
Originator originator = new Originator();
CareTaker careTaker = new CareTaker();
originator.SetState("State #1");
originator.SetState("State #2");
careTaker.Add(originator.SaveStateToMemento());
originator.SetState("State #3");
careTaker.Add(originator.SaveStateToMemento());
originator.SetState("State #4");
Console.WriteLine("Current State: " + originator.GetState());
originator.GetStateFromMemento(careTaker.Get(0));
Console.WriteLine("First saved State: " + originator.GetState());
originator.GetStateFromMemento(careTaker.Get(1));
Console.WriteLine("Second saved State: " + originator.GetState());
}
static void Main(string[] args)
{
Originator origin = new Originator();
CareTaker taker = new CareTaker();
origin.setState("State #1");
origin.setState("State #2");
taker.add(origin.saveStateToMemento());
origin.setState("State #3");
taker.add(origin.saveStateToMemento());
origin.setState("State #4");
// current state
Console.WriteLine("Current state: " + origin.getState());
origin.getStateFromMemento(taker.get(0));
Console.WriteLine("First saved state: " + origin.getState());
origin.getStateFromMemento(taker.get(1));
Console.WriteLine("Second saved state: " + origin.getState());
Console.Read();
}
/// <summary>
/// The test second.
/// </summary>
private static void TestSecond()
{
Originator originator = new Originator {
State = "On"
};
// Store internal state
Caretaker caretaker =
new Caretaker {
AnotherMemento = originator.CreateAnotherMemento()
};
// Continue changing originator
originator.State = "Off";
// Restore saved state
originator.SetAnotherMemento(caretaker.AnotherMemento);
// Wait for user
Console.ReadKey();
}
static void Main(string[] args)
{
// canonical
var originator = new Originator();
originator.State = "ON";
var caretaker = new Caretaker();
caretaker.memento = originator.CreateMemento();
originator.State = "OFF";
originator.SetMemento(caretaker.memento);
Console.WriteLine();
// live
var paint = new GraphicProcessor();
paint.DrawNewFigure(new Draw {
Name = "line1"
});
paint.DrawNewFigure(new Draw {
Name = "line2"
});
paint.DrawNewFigure(new Draw {
Name = "triangleA"
});
var mem = new SwapMemmory();
mem.memento = paint.CreateMemento();
paint.DrawNewFigure(new Draw {
Name = "line5"
});
paint.SetMemento(mem.memento);
}
public static void Run()
{
Console.WriteLine("This structural code demonstrates the Memento pattern which temporary saves and restores another object's internal state.\n");
Originator o = new Originator();
o.State = "On";
Caretaker c = new Caretaker();
c.Memento = o.CreateMemento();
o.State = "Off";
o.SetMemento(c.Memento);
/*
* State = On
* State = Off
* Restoring state:
* State = On
*/
}
public static void Main(string[] args)
{
Caretaker careTaker = new Caretaker();
Originator originator = new Originator();
originator.State = "State1";
careTaker.AddMemento(originator.SaveToMemento());
originator.State = "State2";
careTaker.AddMemento(originator.SaveToMemento());
originator.State = "State3";
careTaker.AddMemento(originator.SaveToMemento());
originator.State = "State4";
careTaker.AddMemento(originator.SaveToMemento());
originator.RestoreFromMemento(careTaker.GetMemento(2));
Console.ReadLine();
}
static void Main(string[] args)
{
//备忘录
Originator o = new Originator();
o.State = "On";
o.Show();
Caretaker c = new Caretaker();
c.Memento = o.CreateMemento();
o.State = "Off";
o.Show();
o.SetMement(c.Memento);
o.Show();
GameRole gr = new GameRole();
gr.InitState();
gr.DisplayInfo();
RoleCaretaker roletaker = new RoleCaretaker();
roletaker.Rolememento = gr.CreateRoleMemento();
gr.Over();
gr.DisplayInfo();
gr.RecoveryRoleMemento(roletaker.Rolememento);
gr.DisplayInfo();
Console.Read();
}
static void Main(string[] args)
{
Originator originator = new Originator("stato 1");
//CareTaker ct = new CareTaker(originator.SaveMemento());
CareTaker ct = new CareTaker();
ct.AddMemento(originator.SaveMemento());
Console.WriteLine("stato: " + originator.Text);
originator.Text = "stato modificato";
Console.WriteLine("stato: " + originator.Text);
ct.AddMemento(originator.SaveMemento());
originator.Text = "stato modificato2";
Console.WriteLine("stato: " + originator.Text);
ct.AddMemento(originator.SaveMemento());
originator.Text = "stato modificato3";
Console.WriteLine("stato: " + originator.Text);
originator.RestoreMemento(ct.GetMemento());
Console.WriteLine("stato: " + originator.Text);
originator.RestoreMemento(ct.GetMemento());
Console.WriteLine("stato: " + originator.Text);
//originator.RestoreMemento(ct.Memento);
//Console.WriteLine("stato: " + originator.Text);
// The code provided will print ‘Hello World’ to the console.
// Press Ctrl+F5 (or go to Debug > Start Without Debugging) to run your app.
Console.WriteLine("Hello World!");
Console.ReadKey();
// Go to http://aka.ms/dotnet-get-started-console to continue learning how to build a console app!
}
private static void Main()
{
var originator = new Originator {
State = "ON"
};
Console.WriteLine("State is " + originator.State);
var caretaker = new Caretaker {
Memento = originator.CreateMemento()
};
originator.State = "OFF";
Console.WriteLine("State is " + originator.State);
Console.WriteLine("Restoring state...");
originator.SetMemento(caretaker.Memento);
Console.WriteLine("State is " + originator.State);
Console.ReadKey();
}
static void Main(string[] args)
{
#region 工厂方法
double total = 0.0d;
CashContext cc = new CashContext(new CashNormal());
total = cc.GetResult(100.04);
cc = new CashContext(new CashRebate("0.8"));
total = cc.GetResult(100.04);
Console.WriteLine(total);
#endregion
#region 装饰器方法
Decorator.Component person = new Decorator.Component("xiaocai");
Tshirt tshirt = new Tshirt();
BigTrouser bt = new BigTrouser();
bt.Decorator(person);
tshirt.Decorator(bt);
tshirt.show();
Console.WriteLine("*****************************");
#endregion
#region 代理方法
SchoolGirl sg = new SchoolGirl();
sg.Name = "李娇骄";
Proxy.Proxy daili = new Proxy.Proxy(sg);
daili.GiveDolls();
daili.GiveFlowers();
#endregion
#region 原型模式
ConcretePrototype1 p1 = new ConcretePrototype1("123");
ConcretePrototype1 c1 = (ConcretePrototype1)p1.Clone();
Console.WriteLine("Cloned :"+c1.Id);
Resume a = new Resume("Andy");
a.setInfo("Man", "24");
a.setWorkExperience("1998-2005","IBM ");
Resume b = (Resume)a.Clone();
b.setWorkExperience("2002-2005", "Dell");
a.display();
b.display();
#endregion
#region 模板模式
Console.WriteLine("Student A testPaper:");
TestPaperA testA = new TestPaperA();
testA.Test1();
testA.Test2();
Console.WriteLine("Student B testPaper:");
TestPaperB testB = new TestPaperB();
testB.Test1();
testB.Test2();
#endregion
#region 抽象工厂方法
User user = new User();
IFactory factory = new SqlServerFactory();
IUser iu = factory.CreateUser();
//IUser riu = (IUser)Assembly.Load("AbstractFactory").CreateInstance("SqlserverUser");
//反射
//Assembly.Load("程序集名称").CreateInstance("程序集名称.类名称");
iu.Insert(user);
iu.GetUser(1);
#endregion
#region Facade 外观模式
Fund jijin = new Fund();
jijin.BuyFund();
jijin.sellFund();
#endregion
#region 建造者模式
Director director = new Director();
abstractBuilder builder1 = new Builder1();
abstractBuilder builder2 = new BuilderB();
director.Construct(builder1);
Builder.Builder b1 = builder1.getBuilder();
b1.show();
director.Construct(builder2);
Builder.Builder b2 = builder2.getBuilder();
b2.show();
#endregion
#region 观察者模式
Observer.ConcreteSubject s = new Observer.ConcreteSubject();
s.Attach(new Observer.ConcreteObserver(s, "x"));
s.Attach(new Observer.ConcreteObserver(s, "y"));
s.SubjectState = "ABC";
s.Notify();
///下面是使用委托
///委托就是一种引用方法的类型。一旦为委托分配了方法，委托将于该方法具有完全相同的行为。
///委托方法的使用可以像其他的方法一样具有参数和返回值。委托可以看作是对函数的抽象，是函数的”类“，委托的实例将代表一个具体的函数
///一个委托可以搭载多个方法，所有方法被依次唤起，委托搭载的方法不需要属于同一个类，只需要具有相同的原型和形式，也就是拥有相同的参数列表和返回类型。
///在使用带参数的委托时，只需要在声明事件的地方将参数传递给事件。在绑定时将调用的方法绑定给事件。
Bosscs boss = new Bosscs();
StockObserver tongshi1 = new StockObserver("tongshi1",boss);
NBAObserver tongshiNBA = new NBAObserver("tongshiNBA", boss);
boss.Update += new EventHandler1(tongshi1.CloseStockMarket);
boss.Update += new EventHandler1(tongshiNBA.CloseStockMarket);
boss.update2 += new EventHandler2(tongshiNBA.print);
boss.SubjectState = " I am back ";
boss.Notify();
#endregion
#region 状态模式
State.Context c = new State.Context(new CreateStateA());
c.Request();
c.Request();
c.Request();
c.Request();
#endregion
#region 备忘录模式
Originator o = new Originator();
o.State = "On";
o.Show();
Caretaker care = new Caretaker();
care.Memento = o.CreateMemento();
o.State = "Off";
o.Show();
o.SetMemento(care.Memento);
o.Show();
GameRole gameRole = new GameRole();
gameRole.GetInitState();
gameRole.StateDisplay();
RoleStateManager stateManager = new RoleStateManager();
stateManager.Memento = gameRole.SaveState();
gameRole.Fight();
gameRole.StateDisplay();
gameRole.RecoveryState(stateManager.Memento);
gameRole.StateDisplay();
#endregion
#region 组合模式
Composite.Composite root = new Composite.Component("root");
root.Add(new Leaf("Leaf A"));
root.Add(new Leaf("Leaf B"));
Composite.Composite comp = new Composite.Component("comp X");
comp.Add(new Leaf("Leaf XA"));
comp.Add(new Leaf("Leaf XB"));
root.Add(comp);
Composite.Composite comp2 = new Composite.Component("Comp X2");
comp2.Add(new Leaf("Leaf X2A"));
comp2.Add(new Leaf("Leaf X2B"));
comp.Add(comp2);
root.Add(new Leaf("Leaf C"));
Leaf leaf = new Leaf("Leaf D");
root.Add(leaf);
root.Display(1);
root.Remove(leaf);
root.Display(1);
#endregion
#region 迭代器模式
ConCreteAggregate aggregate = new ConCreteAggregate();
aggregate[0] = "大鸟";
aggregate[1] = "小菜";
aggregate[2]="行李";
aggregate[3] = "老外";
aggregate[4] = "小偷";
Iterator.Iterator myIterator = new ConCreteIterator(aggregate);
object item = myIterator.First();
while (!myIterator.IsDone())
{
Console.WriteLine(myIterator.CurrentItem() + "请买车票");
myIterator.Next();
}
#endregion
#region 单例模式
//所有类都有构造方法，不编码则默认生成空的构造方法，若有显示定义的构造方法，默认的构造方法就会失效。只要将构造方法改写为私有的，外部的程序就不能通过new 来初始化它。
//通过一个共有的方法来返回类的实例。
Singleton.Singleton s1 = Singleton.Singleton.GetInstance();
Singleton.Singleton s2 = Singleton.Singleton.GetInstance();
if (s1 == s2)
{
Console.WriteLine("两个对象是相同的实例。");
}
#endregion
#region 命令模式
Receiver r = new Receiver();
Command.Command command = new Command.ConcreteCommand(r);
Invoker invoker = new Invoker();
invoker.SetCommand(command);
invoker.ExecuteCommand();
#endregion
#region 职责链模式
Handler h1 = new ConcreteHandler1();
Handler h2 = new ConcreteHandler2();
h1.SetSuccessor(h2);
int[] requests = { 2, 3, 4, 5, 6, 12, 34, 11, 15 };
foreach (int request in requests)
{
h1.HandlerRequest(request);
}
#endregion
#region 中介者模式
ConcreteMediator mediator = new ConcreteMediator();
ConcreteColleague1 colleague1 = new ConcreteColleague1(mediator);
ConcreteColleague2 colleague2 = new ConcreteColleague2(mediator);
mediator.Colleague1 = colleague1;
mediator.Colleague2 = colleague2;
colleague1.Send("吃饭了吗？");
colleague2.Send("还没有呢");
#endregion
#region 享元模式
int extri = 22;
FlyweightFactory f = new FlyweightFactory();
Flyweight.Flyweight fx = f.GetFlyweight("X");
fx.Operation(--extri);
Flyweight.Flyweight fy = f.GetFlyweight("Y");
fy.Operation(--extri);
Flyweight.Flyweight fz = f.GetFlyweight("Z");
fz.Operation(--extri);
#endregion
#region 解释器模式
<<<<<<< HEAD
Interpreter.Context context = new Interpreter.Context();
IList<Interpreter.AbstractExpression> list = new List<Interpreter.AbstractExpression>();
list.Add(new Interpreter.TerminalExpression());
list.Add(new Interpreter.NormalExpression());
foreach (Interpreter.AbstractExpression exp in list)
exp.Interpret(context);
=======
Interpreter.Context context1 = new Interpreter.Context();
IList<AbstractExpression> list = new List<AbstractExpression>();
list.Add(new TerminalExpression());
list.Add(new NonTerminalExpression());
foreach (AbstractExpression exp in list)
{
exp.Interpreter(context1);
}
#endregion
#region 访问者模式
ObjectStructure os = new ObjectStructure();
os.Add(new Man());
os.Add(new Woman());
Success v1 = new Success();
os.Display(v1);
Failing f1 = new Failing();
os.Display(f1);
Amativeness a1 = new Amativeness();
os.Display(a1);
>>>>>>> 77e342ef6e96917a8dc01e72e41626dcffd4ba13
#endregion
Console.Read();
}
//白箱备忘录
//暴露了备忘录中的状态给任何对象
//public State GetState()
//{
// return state;
//}
//黑箱备忘录
//提供一个方法，反调“以参数形式传入的Originator”的改变状态接口(或者将originator直接放在Memento构造时)。
//这样, 虽然这个方法是公有的，但只可能被Originator使用, 保证了备忘录的安全性。缺点是, Memento反向依赖了Originator，增加了耦合度。
public void Restore(Originator originator)
{
originator.ChangeState(this.state);
}
static void Main()
{
var originator = new Originator {State = "State A"};
Console.WriteLine(originator.State);
var caretaker = new Caretaker {Memento = originator.CreateMemento()};
originator.State = "State B";
Console.WriteLine(originator.State);
originator.SetMemento(caretaker.Memento);
Console.WriteLine(originator.State);
}
public static void RestoreState(Originator <T> orig, int checkpoint)
{
orig.RestoreMemento(mementoList[checkpoint]);
}
public Caretaker(Originator <T> originator)
{
Originator = originator;
}
public Caretaker(Originator originator)
{
this._originator = originator;
}
public static void SaveState(Originator <T> orig)
{
mementoList.Add(orig.CreateMemento());
}