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#include <iostream>
class Base_Member{
public:
Base_Member(){
std::cout << " Base_Member Constructor" << std::endl;
}
~Base_Member(){
std::cout << " Base_Member Destructor" << std::endl;
}
};
class Derived_Member{
public:
Derived_Member(){
std::cout << " Derived_Member Constructor" << std::endl;
}
~Derived_Member(){
std::cout << " Derived_Member Destructor" << std::endl;
}
};
class Base{
public:
Base(){
std::cout << " Base Constructor" << std::endl;
}
virtual ~Base(){
std::cout << " Base Destructor" << std::endl;
}
private:
Base_Member bm;
};
class Derived : public Base{
public:
Derived(){
std::cout << " Derived Constructor" << std::endl;
}
~Derived(){
std::cout << " Derived Destructor" << std::endl;
}
private:
Derived_Member dm;
};
int main(){
//派生类指针指向派生类对象
std::cout << "------派生类指针指向派生类对象------" << std::endl;
Derived* pDerived = new Derived();
delete pDerived;
std::cout << std::endl;
//派生类指针不可以指向基类对象
//基类指针指向基类对象
std::cout << "------基类指针指向基类对象------" << std::endl;
Base* pBase1 = new Base();
delete pBase1;
std::cout << std::endl;
//基类指针指向派生类对象
std::cout << "------基类指针指向派生类对象------" << std::endl;
Base* pBase2 = new Derived();
delete pBase2;
std::cout << std::endl;
}
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