虚继承

最新推荐文章于 2025-07-19 18:37:45 发布

原创最新推荐文章于 2025-07-19 18:37:45 发布 · 399 阅读

0 ·

CC 4.0 BY-SA版权

C++ 专栏收录该内容

42 篇文章

订阅专栏

class A
{
public:
	virtual ~A(){cout<<"~A"<<endl;}
	void funA(){cout<<"funA"<<endl;}
};

class B:virtual public A
{
public:
	~B(){cout<<"~B"<<endl;}
	void funB(){cout<<"funB"<<endl;}
};

class C:virtual public A
{
public:
	~C(){cout<<"~C"<<endl;}
	void funC(){cout<<"funC"<<endl;}
};

class D:public B, public C
{
public:
	~D(){cout<<"~D"<<endl;}
	void funD(){cout<<"This is D"<<endl;}
};

void main()
{
	D *pd = new D;
	//当指针pd调用funA()时会出现歧义，系统不知道调用的是B的funA()还是C的funA()，使用虚继承可以解决这类问题
	pd->funA(); 
	delete pd;
}