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#include <iostream>

using namespace std;

class Base{

public:

Base() {

cout << "Base ctor" << endl;

}

~Base() {

cout << "Base dtor" << endl;

}

};

// 子类创建的时候 先调用父类的构造函数 然后调用子类的构造函数

// 子类析构的时候 先调用子类的析构 然后调用父类的析构函数

// 复合模式一致

class Derived: public Base{

public:

Derived() {

cout << "Derived ctor" << endl;

}

~Derived() {

cout << "Derived dtor" << endl;

}

};

void test() {

cout << "...Create..." << endl;

Derived d;

cout << "...Destroy..." << endl;

}

int main(){

test();

}