填空题

请将下列程序的横线处补充完整,使得输出结果为bbaa #include<iostream> using namespace std; class A{ public: ______{cout<<"aa";} }; class B:public A{ public: ~B(){cout<<"bb";} }; int main(){ B*p=new B; delete p; retum 0; }

【参考答案】

~A()