C++：使用父类运算符函数更新子类对象的继承变量

#include <iostream>

class Parent {
protected:
    int inheritedVariable;

public:
    Parent(int value) : inheritedVariable(value) {}

    virtual void updateInheritedVariable(int value) {
        inheritedVariable = value;
    }

    void printInheritedVariable() {
        std::cout << "Inherited Variable: " << inheritedVariable << std::endl;
    }
};

class Child : public Parent {
public:
    Child(int value) : Parent(value) {}

    void updateInheritedVariable(int value) override {
        inheritedVariable = value * 2;
    }
};

int main() {
    Parent* parent = new Child(10);
    parent->printInheritedVariable();  // Output: Inherited Variable: 10

    parent->updateInheritedVariable(5);
    parent->printInheritedVariable();  // Output: Inherited Variable: 10

    Child* child = dynamic_cast<Child*>(parent);
    child->updateInheritedVariable(5);
    child->printInheritedVariable();  // Output: Inherited Variable: 10

    delete parent;
    return 0;
}