大话设计模式之装饰模式代码
using System;
using System.Collections.Generic;
using System.Text;
namespace 装饰模式
{
class Program
{
static void Main(string[] args)
{
ConcreteComponent c = new ConcreteComponent();
ConcreteDecoratorA d1 = new ConcreteDecoratorA();
ConcreteDecoratorB d2 = new ConcreteDecoratorB();
d1.SetComponent(c);
d2.SetComponent(d1);
d2.Operation();
Console.Read();
}
}
abstract class Component
{
public abstract void Operation();
}
class ConcreteComponent : Component
{
public override void Operation()
{
Console.WriteLine("具体对象的操作");
}
}
abstract class Decorator : Component
{
protected Component component;
public void SetComponent(Component component)
{
this.component = component;
}
public override void Operation()
{
if (component != null)
{
component.Operation();
}
}
}
class ConcreteDecoratorA : Decorator
{
private string addedState;
public override void Operation()
{
base.Operation();
addedState = "New State";
Console.WriteLine("具体装饰对象A的操作");
}
}
class ConcreteDecoratorB : Decorator
{
public override void Operation()
{
base.Operation();
AddedBehavior();
Console.WriteLine("具体装饰对象B的操作");
}
private void AddedBehavior()
{
}
}
}

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