相关疑难解决方法(0)

各位,我有一个案例需要子类在调用其覆盖虚函数之前首先需要调用其父虚函数.

BaseClass::Draw()
{

}

ChildClass::Draw()
{
    BaseClass::Draw(); // BaseClass Draw must be called first.
}

GrandChildClass::Draw()
{
    ChildClass::Draw(); // ChildClass Draw must be called first.
}

我想隐藏客户端的这种行为.这有模式吗？

谢谢.