工厂模式及抽象工厂模式代码.doc

实验一 工厂模式与抽象工厂模式设计实验内容 1、 请使用简单工厂模式设计一个创建不同几何形状，如圆形、方形和三角形实例的描图员（Art Tracer）系统。每个几何图形都要有画出draw()和擦去erase()两个方法。2、 为了更好的在系统中增加其它图形，请用工厂方法模式重构。3、 为了能够在系统中创建几何图形以外的内容，如文字等，请使用抽象工厂模式重构。代码：工厂模式：Shape类及其他的继承类：using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace Shape public interface Shape void draw(); void erase(); public class Circle : Shape public void draw() Console.WriteLine(画圆); public void erase() Console.WriteLine(擦去圆); public class Rectangle : Shape public void draw() Console.WriteLine(画方形); public void erase() Console.WriteLine(擦去方形); public class Triangle : Shape public void draw() Console.WriteLine(画三角形); public void erase() Console.WriteLine(擦去三角形); 工厂类：namespace Shape public abstract class Factor public abstract Shape factor(); public class FactorCircle : Factor public override Shape factor() return new Circle(); public class FactorRectangle : Factor public override Shape factor() return new Rectangle(); public class FactorTriangle : Factor public override Shape factor() return new Triangle(); 工厂模式测试代码：namespace Shape class Program static void Main(string args) Console.WriteLine(工厂模式测试：); Factor factorshape = new FactorCircle(); factorshape.factor().draw(); factorshape.factor().erase(); factorshape = new FactorRectangle(); factorshape.factor().draw(); factorshape.factor().erase(); factorshape = new FactorTriangle(); factorshape.factor().draw(); factorshape.factor().erase(); Console.Read(); 增加一个非图形类实现抽象工厂模式：namespace Shape public abstract class Word public abstract void draw(); public abstract void erase(); public class WordCase : Word public override void draw() Console.WriteLine(写汉字); public override void erase() Console.WriteLine(擦去汉字); 抽象工厂类：namespace Shape interface AbstractFactor Shape AbstractFactorShape(Shape shape); Word AbstractFactorWord(Word word); public class MyAbstractFactor : AbstractFactor public Shape AbstractFactorShape(Shape shape) return shape; public Word AbstractFactorWord(Word word) return word; 抽象工厂测试代码：namespace Shape class Program static void Main(string args) Console.WriteLine(抽象工厂模式测试：); Shape circle = new Circle(); Shape tri = new Triangle(); Word word =new WordCase(); AbstractFactor af = new MyAbstractFactor(); af.AbstractFactorShape(circle).draw(); af.AbstractFactorShape(circle).erase(); af.AbstractFactorShape(tri).draw(); af.