设计模式实验报告

1、-. z.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，使用单例模式进展设计。2 实验容和要求很多应用工程都有配置文件，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容，系统中会同时存在多份配置文件的容，这会严重浪费存资源。事实上，对于AppConfig类，在运行期间，只需要一个对象实例就够了。则应该怎么实现呢？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;us

2、ing System.Collections.Generic;using System.Linq;using System.Te*t;using System.Threading.Tasks;namespace AppConfigpublicclassSingleton privatestaticSingleton instance;private Singleton() publicstaticSingleton GetInstance() if (instance = null) instance = newSingleton(); return instance; classProgra

3、m staticvoid 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.ReadK

4、ey(); 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，使用工厂模式进展设计。2 实验容和要求有一个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 Sy

5、stem.Te*t;using System.Threading.Tasks;namespace Factoryclassputerpublicvirtualvoid print() Console.Write(我是putern); classHPputer:puter publicoverridevoid print() Console.Write(我是HPputern); classAcerputer : puter publicoverridevoid print() Console.Write(我是Acerputern); classDellputer : puter publicov

6、erridevoid print() Console.Write(我是Dellputern); interfaceIfactory puter Createputer(); classHPFactory : Ifactory publicputer Createputer() returnnewHPputer(); classAcerFactory : Ifactory publicputer Createputer() returnnewAcerputer(); classDellFactory : Ifactory publicputer Createputer() returnnewDe

7、llputer(); classProgram staticvoid Main(string args) Ifactory factory = newHPFactory();puter puter = factory.Createputer(); puter.print(); factory = newDellFactory(); puter = factory.Createputer(); puter.print(); factory = newAcerFactory(); puter = factory.Createputer(); puter.print(); 4 实验截图实验三抽象工厂

8、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展设计。2 实验容和要求麦当劳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.Te*t;using System.Threading.Tasks;namespace AbstractFactorycla

9、ssCola publicvirtualvoid print()Console.Write(i am colan); classHum publicvirtualvoid print() Console.Write(i am hamburgern); classKFCCola : Cola publicoverridevoid print() Console.Write(i am KFCcolan); classMDCola : Cola publicoverridevoid print() Console.Write(i am MDcolan); classKFChum:Hum public

10、overridevoid print() Console.Write(i am KFChamburgern); classMDhum : Hum publicoverridevoid print() Console.Write(i am MDhamburgern); abstractclassfactory publicabstractHum createHum();publicabstractCola createCola(); classKFCFectory : factory publicoverrideHum createHum() returnnewKFChum(); publico

11、verrideCola createCola() returnnewKFCCola(); classMDFectory : factory publicoverrideHum createHum() returnnewMDhum(); publicoverrideCola createCola() returnnewMDCola(); classProgram staticvoid Main(string args) factory f = newKFCFectory();Hum h = f.createHum();Cola c = f.createCola(); h.print(); c.p

12、rint(); f = newMDFectory(); 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，使用建造者模式进展设计。2 实验容和要求建造者模式是一种创立型模式，它主要是应对工程中一些复杂对象的创立工作。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(OilBo*)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

13、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.Te*t;using System.Threading.Tasks;namespace BuilderclassCar privateString wheel;privateString oilBo*;privateString body;publicvoid setWheel(String wheel) this.wheel = wheel; publicvoid setOilBo*

14、(String oilBo*) this.oilBo* = oilBo*; publicvoid setBody(String body) this.body = body; publicvoid introuduce() Console.WriteLine(wheel);Console.WriteLine(oilBo*);Console.WriteLine(body); abstractclassCarBuilder protectedCar car = newCar();publicabstractvoid buildWheel();publicabstractvoid buildOilB

15、o*();publicabstractvoid buildBody();publicCar getCar() return car; classBMWBuilder : CarBuilder publicoverridevoid buildBody() car.setWheel(wheel made in BMW); publicoverridevoid buildOilBo*() car.setOilBo*(oilBo* made in BMW); publicoverridevoid buildWheel() car.setBody(body made in BMW); classBenZ

16、Builder : CarBuilder publicoverridevoid buildBody() car.setWheel(wheel made in Benz); publicoverridevoid buildOilBo*() car.setOilBo*(oilBo* made in Benz); publicoverridevoid buildWheel() car.setBody(body made in Benz); classDirector privateCarBuilder carBuilder;public Director(CarBuilder carBuilder) this.carBuilder = carBuilder; publicvoid setCarBuilder(CarBuilder carBuilder) this.carBuilder = carBuilder; publicvoid construct() carBuilder.buildWheel(); carBuilder.buildBody(); carBuilder.buildOilBo*(); classProgram staticvoid Main(string args) Car car;CarBuilder carbuilder = newBM