};//public inheritance, all Base's members remain the same scopeclassPublicDerived:publicBase{public:voidaccessBase() {//okpublicBaseMethod();//okprotectedBaseMethod();//compile error: 'privateBaseMethod' is a private member of 'Base'//privateBaseMethod();} };//protected inheritance, Base'...
AI代码解释 classBase{protected:int protectedVar=5;private:int privateVar=10;public:voidshowProtected(){std::cout<<"Protected Var: "<<protectedVar<<std::endl;}};classDerived:publicBase{public:voidaccessBaseMembers(){// 可以访问protected成员std::cout<<"Derived can see Protected Var: "<<protect...
受保护的成员可以从派生类中访问,而私有成员则不能。 class Base { private: int MyPrivateInt; protected: int MyProtectedInt; public: int MyPublicInt; }; class Derived : Base { public: int foo1() { return MyPrivateInt;} // Won't compile! int foo2() { return MyProtectedInt;} // OK ...
class Engine { public: Engine(int numCylinders); void start(); // Starts this Engine }; class Car { public: Car() : e_(8) { } // Initializes this Car with 8 cylinders void start() { e_.start(); } // Start this Car by starting its Engine private: Engine e_; // Car has...
something */}};classDerived:privateBase{public:usingBase::function;// 注意不要写成 using Base::...
在C++中,所谓“继承”就是在一个已存在的类的基础上建立一个新的类。已存在的类称为“基类(base class)”或“父类(father class)”,新建的类称为“派生类(derived class)”或“子类(son class )”。 一个新类从已有的类那里获得其已有特性,这种现象称为类的继承。通过继承,一个新建子类从已有的父类那里...
class Fred : private Wilma { public: void barney() { std::cout << "Fred::barney()\n"; Wilma::fredCallsWilma(); } protected: virtual void wilmaCallsFred() { std::cout << "Fred::wilmaCallsFred()\n"; } }; [24.4] 从私有继承类到父类需要指针类型转换吗?
While private inheritance hides the public interface of the base class from all the derived class users, protected inheritance makes it accessible to descendants of the derived class.It's hard to imagine a scenario where you would need protected inheritance, but you should consider it as a tool...
public inheritance makes public members of the base class public in the derived class, and the protected members of the base class remain protected in the derived class. protected inheritance makes the public and protected members of the base class protected in the derived class. private inheritance...
This means if you have a base class with a protected member, this member can be accessed by any class that inherits from this base class. However, it remains inaccessible to any other class that is not part of this inheritance chain. For instance, consider a Vehicle class with a protected...