12.设计模式.装饰模式(Decorator).pptx

设计模式(Design Pattern)
张凯副教授
计算机学院软件工程系
问题(Problem)
个性QQ秀
问题(Problem)
个性QQ秀
问题(Problem)
class Person
{
private string name;
public Person(string name)
{
= name;
}
public void WearTShirts()
{
("T恤");
}
public void WearJeans()
{
("牛仔裤");
}
public void WearSneakers()
{
("球鞋");
}
public void WearSuit()
{
("西装");
}
public void WearTrousers ()
{
("西裤");
}
public void WearLeatherShoes()
{
("皮鞋");
}
public void Show()
{
("装扮的{0}", name);
}
}
问题(Problem)
思考:不断添加新的衣服怎么办? 原则?
static void Main(string[] args)
{
Person zs = new Person("张三");
("\n第一种装扮:");
();
();
();
();
("\n第二种装扮:");
();
();
();
();
();
}
问题(Problem)
问题(Problem)
class Person
{
private string name;
public Person(string name)
{
= name;
}
public void Show()
{
("装扮的{0}", name);
}
}
问题(Problem)
abstract class Finery //服饰
{
public abstract void Show();
}
class TShirts : Finery //T恤
{
public override void Show()
{
("T恤");
}
}
class Jeans : Finery //牛仔裤
{
public override void Show()
{
("牛仔裤");
}
}
class Sneakers : Finery //球鞋
{
public override void Show()
{
("球鞋");
}
}
问题(Problem)
static void Main(string[] args)
{
Person zs = new Person("张三");
("\n第一种装扮:");
Finery tx = new TShirts();
Finery nzk = new Jeans();
Finery qx = new Sneakers();
();
();
();
();
("\n第二种装扮:");
Finery xz = new Suit();
Finery xk = new Trousers();
Finery px = new LeatherShoes();
();
();
();
();
();
}
问题(Problem)
期望:内部组装完毕,再显示出来
();
();
();
();