C++程序习题-验证继承的构造函数，析构函数[5.8]

#include <iostream>
using namespace std;

class A
{
    public:
    A(){ cout << "construction A" << endl;}
    ~A(){cout << "destructing A" << endl;}
};

class B: public A
{
    public:
    B(){ cout << "construction B" << endl;}
    ~B(){cout << "destructing B" << endl;}
};

class C: public B
{
    public:
    C(){ cout << "construction C" << endl;}
    ~C(){cout << "destructing C" << endl;}
};

int main()
{
    C c1;
    c1.~C();
    system("pause");
    return 0;
}