我有一個類CAbstractNode使用將dynamic_cast,它有5個派生類 5,只有2(特殊)需要一個方法SetValue()和一個構件INT NVAL; //myFunction is virtual function of base(cAbstractNode) implemented in 2 special derived classes
myFunction(CAbstract
我有以下代碼。 #include <iostream>
using namespace std;
class Base
{
public:
virtual int f(){cout<<"Base"<<endl;}
};
class Derived:public Base
{
public:
int f(){cout<<"Derived"<<endl;}
考慮以下幾點: class MyInterface { /* ... */ }; // has virtual methods and all
class MyToolButton : public QToolButton, public MyInterface { /* ... */ };
class MyRadioButton : public QRadioButton, public
我有一個基類和派生類,如: class Base {
public:
Base();
virtual doSomthing();
};
class Derivative : class Base {
public:
Derivative();
virtual doSomthing();
};
我知道,如果我想從父親到兒子更改運行時我會做 De
我有這樣的結構: class IIterator : public ICollectible{};
class A: public ICollectible{};
class b: public A{};
class c: public A{};
class d: public A{};
當我做這樣的事情 IIterator* it = colection->getIterator()