A18435. 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 …

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;
}