#include <iostream.h>
class base							//类base
{
public:
	base()
	{
		cout<<"基类base的构造函数"<<endl;
	}
	~base()
	{
		cout<<"基类base的析构函数"<<endl;
	}
};
class A:virtual public base			//虚基类，类A在类base派生
{
public:
	A()
	{
		cout<<"基类A的构造函数"<<endl;
	}
	~A()
	{
		cout<<"基类A的析构函数"<<endl;
	}
};
class B:virtual public base			//虚基类，类B在类base派生
{
public:
	B()
	{
		cout<<"基类B的构造函数"<<endl;
	}
	~B()
	{
		cout<<"基类B的析构函数"<<endl;
	}
};
class C:public A,public B			//多重继承，类C继承类A和类B
{
public:
	C()
	{
		cout<<"派生类C的构造函数"<<endl;
	}
	~C()
	{
		cout<<"派生类C的析构函数"<<endl;
	}
};
void main()
{
	C p;							//定义对象
}