在继承类之前释放基类

#include <iostream>

// 基类
class BaseClass {
public:
    BaseClass() {
        std::cout << "BaseClass 构造函数" << std::endl;
    }

    ~BaseClass() {
        std::cout << "BaseClass 析构函数" << std::endl;
    }

    void DoSomething() {
        std::cout << "BaseClass 执行操作" << std::endl;
    }
};

// 派生类
class DerivedClass : public BaseClass {
public:
    DerivedClass() {
        std::cout << "DerivedClass 构造函数" << std::endl;
    }

    ~DerivedClass() {
        std::cout << "DerivedClass 析构函数" << std::endl;
    }

    void DoSomething() {
        std::cout << "DerivedClass 执行操作" << std::endl;
    }
};

int main() {
    DerivedClass derivedObj;
    derivedObj.DoSomething();

    return 0;
}

BaseClass 构造函数
DerivedClass 构造函数
DerivedClass 执行操作
DerivedClass 析构函数
BaseClass 析构函数