static void Main(string[] args)
{
Originator o = new Originator();
o.State = "On";
Caretaker c = new Caretaker();
c.Memento = o.CreateMemento();
o.State = "Off";
if (!o.State.ToUpper().Equals(c.Memento.State.ToUpper()))
{
o.SetMemento(c.Memento);
}
Console.WriteLine("Originator's state = " + o.State);
Console.ReadKey();
}
static void Main(string[] args)
{
Originator o = new Originator();
o.State = "On"; // 初始化状态
o.Show();
Caretaker c = new Caretaker();
c.Memento = o.CreateMemento();
// 修改状态
o.State = "Off";
o.Show();
// 恢复状态
o.SetMemento(c.Memento);
o.Show();
Console.Read();
}
static void Main(string[] args)
{
Originator originator = new Originator()
{
Status = "张三",
OtherStatus = "你好"
};
Caretaker caretaker = new Caretaker()
{
Memento = originator.CreateMemento()
};
// 修改
originator.Status = "李四";
Console.WriteLine($"修改后的值：{originator.Status}");
// 撤销
originator.RecoveryMemento(caretaker.Memento);
Console.WriteLine($"赋值错误，修复中...");
Console.WriteLine($"撤销已完成：{originator.Status}");
Console.ReadKey();
}
//save state of the originator
public static void SaveState(Originator <T> orig)
{
mementoList.Add(orig.CreateMemento());
}