基类的构造函数和析构函数是否与派生类一起调用？ [英] Does a base class's constructor and destructor get called with the derived ones?

问题描述

我有一个名为MyBase的类，它有一个构造函数和析构函数：

I have a class called MyBase which has a constructor and destructor:

class MyBase
{
public:
    MyBase(void);
    ~MyBase(void);
};

我有一个叫Banana的类，它扩展了MyBase：

and I have a class called Banana, that extends MyBase like so:

class Banana:public MyBase
{
public:
    Banana(void);
    ~Banana(void);
};

Banana中的新构造函数和析构函数的实现是否覆盖MyBase， ，并在Banana构造函数/析构函数执行之前或之后调用。

Does the implementation of the new constructor and destructor in Banana override the MyBase ones, or do they still exist, and get called say before or after the Banana constructor / destructor executes?

谢谢，如果我的问题看起来很蠢，我道歉。

Thanks, and my apologies if my question seems silly.

推荐答案

应该说

class Banana : public MyBase
{
public:
    Banana(void);
    ~Banana(void);
};

派生类的构造函数在基类的构造函数之后调用。析构函数以相反的顺序调用。

The constructor of the derived class gets called after the constructor of the base class. The destructors get called in reversed order.

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