C ++继承-QList [英] C++ Inheritance - QList

问题描述

我有一个汽车类，它继承了QList< int>.我想知道如何使用刚刚继承的QList?

I have a class, Car, that inherits a QList< int >. I am wondering how would I use the QList I just inherited?

根据我对如何使用继承的业余理解，如果Car继承了Vehicle，则可以通过访问Vehicle :: getWheels()来访问Vehicle的方法.如果我继承QList怎么办?

From my amateur understanding of how to use inheritance, if Car inherits Vehicle, I would access a method of Vehicle by going Vehicle::getWheels(). How would this work if I inherit QList though?

推荐答案

如果您的Car从Vehicle继承，则可以简单地使用继承的方法(以防您未覆盖这些方法).示例:

If your Car inherits from Vehicle you can simply use the inherited methods (in case you have not overwritten those). Example:

class Vehicle
{
    int wheels_;

    public:
        Vehicle(int wheels=4)
        : wheels_(wheels)
        {
        }

        int getWheels() const { return wheels_; }
};

class Car: public Vehicle
{
};

Car myCar;
myCar.getWheels();

因此，对于您的问题，如果您的类被清除为class Car : public QList< int > { ... };，则可以简单地使用QList< int >的成员而无需明确.

So for your question, you can simply use the members of QList< int > without being explicit if your class was decleared as class Car : public QList< int > { ... };.

这篇关于C ++继承-QList的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！