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。
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;
}
正确答案：错误（×）