• 2022-06-12 问题

    以下C#代码中,关于虚方法和抽象方法使用正确的是() A: publicabstractclassAnimal{publicAnimal(){}}publicabstractvoidRun():Animal{publicCat(){}publicvoidRun(){}} B: publicclassAnimal{publicAnimal(){}}publicabstractvoidRun():Animal{publicCat(){}publicvoidRun(){}} C: publicabstractclassAnimal{publicAnimal(){}publicabstractvoidRun();}publicclasscat:Animal{publicCat(){}publicoverridevoidRun(){}} D: publicvirtualclassAnimal{publicAnimal(){}publicvirtualvoidRun();}publicclasscat:Animal{publicCat(){}publicoverridevoidRun(){}}

    以下C#代码中,关于虚方法和抽象方法使用正确的是() A: publicabstractclassAnimal{publicAnimal(){}}publicabstractvoidRun():Animal{publicCat(){}publicvoidRun(){}} B: publicclassAnimal{publicAnimal(){}}publicabstractvoidRun():Animal{publicCat(){}publicvoidRun(){}} C: publicabstractclassAnimal{publicAnimal(){}publicabstractvoidRun();}publicclasscat:Animal{publicCat(){}publicoverridevoidRun(){}} D: publicvirtualclassAnimal{publicAnimal(){}publicvirtualvoidRun();}publicclasscat:Animal{publicCat(){}publicoverridevoidRun(){}}

  • 2021-04-14 问题

    下列代码声明了3个类 class Animal{}; class Cat:publicAnimal{}; class Mouse:Animal{}; 对于这段代码,理解错误的是:

    下列代码声明了3个类 class Animal{}; class Cat:publicAnimal{}; class Mouse:Animal{}; 对于这段代码,理解错误的是:

  • 2021-04-14 问题

    阅读下列程序,程序的运行结果是____。 #include usingnamespacestd; classAnimal { public: voidspeak(){cout<<"animallanguage!"<<endl;} }; classCat:publicAnimal { public: voidspeak(){cout<<"catlanguage:miaomiao!"<<endl;} }; intmain() { Catcat; cat.speak(); }

    阅读下列程序,程序的运行结果是____。 #include usingnamespacestd; classAnimal { public: voidspeak(){cout<<"animallanguage!"<<endl;} }; classCat:publicAnimal { public: voidspeak(){cout<<"catlanguage:miaomiao!"<<endl;} }; intmain() { Catcat; cat.speak(); }

  • 2022-06-06 问题

    下列代码声明了3个类class Animal{};class Cat:publicAnimal{};class Mouse:Animal{};下列关于这些类之间关系的描述中,错误的是: A: 类Animal是类Cat的基类 B: 类Mouse从类Cat公有继承 C: 类Cat是类Animal的派生类 D: 类Mouse是类Animal的派生类

    下列代码声明了3个类class Animal{};class Cat:publicAnimal{};class Mouse:Animal{};下列关于这些类之间关系的描述中,错误的是: A: 类Animal是类Cat的基类 B: 类Mouse从类Cat公有继承 C: 类Cat是类Animal的派生类 D: 类Mouse是类Animal的派生类

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