设计模式实验报告(共12页).doc

精选优质文档-倾情为你奉上实验一 单例模式的应用1 实验目的1) 掌握单例模式（Singleton）的特点2) 分析具体问题，使用单例模式进行设计。2 实验内容和要求很多应用项目都有配置文件，这些配置文件里面定义一些应用需要的参数数据。 通常客户端使用这个类是通过new一个AppConfig的实例来得到一个操作配置文件内容的对象。如果在系统运行中，有很多地方都需要使用配置文件的内容，系统中会同时存在多份配置文件的内容，这会严重浪费内存资源。事实上，对于AppConfig类，在运行期间，只需要一个对象实例就够了。那么应该怎么实现呢？用C#控制台应用程序实现该单例模式。绘制该模式的UML图。3 实验代码using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace AppConfig public class Singleton private static Singleton instance; private Singleton() public static Singleton GetInstance() if (instance = null) instance = new Singleton(); return instance; class Program static void Main(string args) Singleton singletonOne = Singleton.GetInstance(); Singleton singletonTwo = Singleton.GetInstance(); if (singletonOne.Equals(singletonTwo) Console.WriteLine("singletonOne 和 singletonTwo 代表的是同一个实例"); else Console.WriteLine("singletonOne 和 singletonTwo 代表的是不同实例"); Console.ReadKey(); 4 实验结果实验二 工厂模式的应用1 实验目的1) 掌握工厂模式（Factory）的特点2) 分析具体问题，使用工厂模式进行设计。2 实验内容和要求有一个OEM制造商代理做HP笔记本电脑(Laptop)，后来该制造商得到了更多的品牌笔记本电脑的订单Acer，Lenovo，Dell，该OEM商发现，如果一次同时做很多个牌子的本本，有些不利于管理。利用工厂模式改善设计，用C#控制台应用程序实现该OEM制造商的工厂模式。绘制该模式的UML图。3 实验代码using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace Factory class Computer public virtual void print() Console.Write("我是Computern"); class HPComputer:Computer public override void print() Console.Write("我是HPComputern"); class AcerComputer : Computer public override void print() Console.Write("我是AcerComputern"); class DellComputer : Computer public override void print() Console.Write("我是DellComputern"); interface Ifactory Computer CreateComputer(); class HPFactory : Ifactory public Computer CreateComputer() return new HPComputer(); class AcerFactory : Ifactory public Computer CreateComputer() return new AcerComputer(); class DellFactory : Ifactory public Computer CreateComputer() return new DellComputer(); class Program static void Main(string args) Ifactory factory = new HPFactory(); Computer computer = factory.CreateComputer(); computer.print(); factory = new DellFactory(); computer = factory.CreateComputer(); computer.print(); factory = new AcerFactory(); computer = factory.CreateComputer(); computer.print(); 4 实验截图实验三 抽象工厂模式的应用1 实验目的1) 掌握抽象工厂模式（Abstract Factory）的特点2) 分析具体问题，使用抽象工厂模式进行设计。2 实验内容和要求麦当劳（McDonalds）和肯德基（KFC）快餐店都经营汉堡（Hamburg）和可乐（Cola），用C#控制台应用程序实现这两个快餐店经营产品的抽象工厂模式。绘制该模式的UML图。3 实验代码using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace AbstractFactory class Cola public virtual void print() Console.Write("i am colan"); class Hum public virtual void print() Console.Write("i am hamburgern"); class KFCCola : Cola public override void print() Console.Write("i am KFCcolan"); class MDCola : Cola public override void print() Console.Write("i am MDcolan"); class KFChum:Hum public override void print() Console.Write("i am KFChamburgern"); class MDhum : Hum public override void print() Console.Write("i am MDhamburgern"); abstract class factory public abstract Hum createHum(); public abstract Cola createCola(); class KFCFectory : factory public override Hum createHum() return new KFChum(); public override Cola createCola() return new KFCCola(); class MDFectory : factory public override Hum createHum() return new MDhum(); public override Cola createCola() return new MDCola(); class Program static void Main(string args) factory f = new KFCFectory(); Hum h = f.createHum(); Cola c = f.createCola(); h.print(); c.print(); f = new MDFectory(); h = f.createHum(); c = f.createCola(); h.print(); c.print(); 4 实验结果实验四 建造者模式的应用1 实验目的1) 掌握建造者模式（Builder）的特点2) 分析具体问题，使用建造者模式进行设计。2 实验内容和要求建造者模式是一种创建型模式，它主要是应对项目中一些复杂对象的创建工作。所谓“复杂对象”，是指此对象中还含有其它的子对象。我们现在定义一个场景：汽车生产必须包含车轮(Wheel)、油箱(OilBox)和车身(Body)，应用建造者模式，用C#控制台应用程序实现该设计，构建BMW品牌和BenZ品牌汽车生产。绘制该模式的UML图。3 实验代码using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace Builder class Car private String wheel; private String oilBox; private String body; public void setWheel(String wheel) this.wheel = wheel; public void setOilBox(String oilBox) this.oilBox = oilBox; public void setBody(String body) this.body = body; public void introuduce() Console.WriteLine(wheel); Console.WriteLine(oilBox); Console.WriteLine(body); abstract class CarBuilder protected Car car = new Car(); public abstract void buildWheel(); public abstract void buildOilBox(); public abstract void buildBody(); public Car getCar() return car; class BMWBuilder : CarBuilder public override void buildBody() car.setWheel("wheel made in BMW"); public override void buildOilBox() car.setOilBox("oilBox made in BMW"); public override void buildWheel() car.setBody("body made in BMW"); class BenZBuilder : CarBuilder public override void buildBody() car.setWheel("wheel made in Benz"); public override void buildOilBox() car.setOilBox("oilBox made in Benz"); public override void buildWheel() car.setBody("body made in Benz"); class Director private CarBuilder carBuilder; public Director(CarBuilder carBuilder) this.carBuilder = carBuilder; public void setCarBuilder(CarBuilder carBuilder) this.carBuilder = carBuilder; public void construct() carBuilder.buildWheel(); carBuilder.buildBody(); carBuilder.buildOilBox(); class Program static void Main(string args) Car car; CarBuilder carbuilder = new BMWBuilder(); Director director = new Director(carbuilder); director.construct(); car = carbuilder.getCar(); car.introuduce(); carbuilder = new BenZBuilder(); director.setCarBuilder(carbuilder); director.construct(); car = carbuilder.getCar(); car.introuduce(); Console.ReadKey(); 4 实验结果专心-专注-专业