通过指向 Base 的指针删除 Derived 对象时,一定会先调用 Derived 的析构函数,再调用 Base 的析 构函数。

#include <iostream>
using namespace std;
class Base {
    public:
    ~Base() {
        cout << "Base destructor" << endl;
    }
};
class Derived : public Base {
    public:
    ~Derived() {
        cout << "Derived destructor" << endl;
    }
};
int main() {
    Base* p = new Derived();
    delete p;
    return 0;
}

{{ select(1) }}

• 正确
• 错误