如何使用动态基类初始化实例

#include <iostream>

class Base {
public:
    Base(int value) : m_value(value) {
        std::cout << "Base constructor" << std::endl;
    }

    void printValue() {
        std::cout << "Value: " << m_value << std::endl;
    }

private:
    int m_value;
};

class Derived : virtual public Base {
public:
    Derived(int value) : Base(value) {
        std::cout << "Derived constructor" << std::endl;
    }
};

int main() {
    Derived d(10);
    d.printValue();

    return 0;
}

Base constructor
Derived constructor
Value: 10