精品：策略模式实验报告可编辑

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1、《软件开发实践》实验报告实验一策略模式一、实验目的：1.理解策略模式的基本理论2.掌握策略模式的使用方法实验内容：1.模式定义：策略模式定义了一系列的算法，并将每一个算法封装起來，而且使它们还可以相互替换。策略模式让算法独立于使用它的客户而独立变化。BookOrder・bookID:int・price:double・type:String-amount:int-strategy:Discountstrategy0?Discountstrategy♦«Getter»♦«Setter»♦«Getteo>令«Setter»♦«Getter»令«Setter»令«Getter»+

2、«Setter»getBookID0:intsetBookID(intnewBookID):voidgetPrice0:doublesetPrice(doublenewPrice):voidgetAmount0:intsetAmount(intnewAmount):voidgetlype0:StringsetType(StringnewType):voidgetOrderKloney0:doublesetDiscountStrategy0:void*compute(intamount,doubleprice):doubleComputerDiscountStfategyB

3、ookCart-list:AnayList♦addBookOrder(BookOrderorder):void♦deletBookOrder(BookOrderorder):void♦payBil0:double00.1♦«lmplement»compute(intamount,doubleprice):doubleLanguageDiscountStrate^y♦«lmp!ement»compute(Intamount,doubleprice):double2.模式练习：设一个网上书店，该系统屮所有的计算机类图书每本都有10%的折扣,所有的语言类图书何本都有两元的折扣，

4、小说类图书侮100元有10元的折扣。3・三、实验结果1.开发环境：VS.2(X)82.主耍源代码：publicabstractclassCharacter{WeaponBehaviorweaponBehavior;publicCharacter(){};publicabstractvoiddisplay();publicvoidfight()//委托给行为类weaponBehavior•useWeapon();}publicvoidsetWeaponBehavior(WeaponBehaviorwb)weaponBehavior=wb;}}publicclassKinge

5、xtendsCharacter{publicKing(){publicvoiddisplay(){System.out.print「King：n);}}publicclassQueenextendsCharacter{publicQueen(){weaponBehavior=newKnifeBehavior();}publicvoiddisplay(){System.out.print(HQueen：H;}}publicclassKnightextendsCharacter{publicKnight()weaponBehavior=newBowAndArrowBehavi

6、or();}publicvoiddisplay(){System,out.print("Knight：11);}}publicclassTrollextendsCharacter{publicTroll(){weaponBehavior=newAxeBehavior();}publicvoiddisplay(){System.out:.print(nTroll：n);}}publicinterfaceWeaponBehaviorpublicvoiduseWeapon();publicclassAxeBehaviorimplementsWeaponBehavior{publ

7、icvoiduseWeapon(){System.out.printIn(n!(AxeBehavior)11);}}publicclassBowAndArrowBehaviorimplementsWeaponBehavior{publicvoiduseWeapon(){System.out.printIn(n!(BowAndArrowBehavior)H);}}implementsWeaponBehavior(KnifeBehavior)n);publicclassKnifeBehavior{publicvoiduseWeap