练习41

#include <iostream>
using namespace std;


class BaseClass
{
public:
    BaseClass();
};


BaseClass::BaseClass()
{
    cout << "构造基类对象!" << endl;


}


class DerivedClass : public BaseClass
{
public:
    DerivedClass();   
};


DerivedClass::DerivedClass()
{
    cout << "构造派生类对象!" << endl;
}




int main()
{
    DerivedClass d;
}