摘要： #include "stdafx.h"#include <iostream>using namespace std;template<class T>class Operation{public: virtual void Algorithm() = 0;};template<class T>class Add:public Operation<T>{public: Add (T a , T b):m_a(a),m_b(b) { } void Algorithm() { cout<< (m_a + m_b)< 阅读全文

摘要： dynamic_cast 动态类型转换，必须有虚函数。#include "stdafx.h"#include <iostream>using namespace std;class Basic{public: virtual void funOfBasic(){cout<<"this is the basic's fun"<<endl;}};class Derived:public Basic{public: virtual void funOfDerived(){cout<<"this 阅读全文