C++语法小记---继承中的构造和析构顺序

继承中构造和析构的顺序

• 先父母，后客人，最后自己

• 静态变量和全局变量在最开始

• 析构和构造的顺序完全相反

#include <iostream>
#include <string>

using namespace std;

class Global
{
public:
    Global()
    {
        cout<< "Global()" << endl;
    }
    
    ~Global()
    {
        cout<< "~Global()" << endl;
    }
};


class Other
{
public:
    Other()
    {
        cout<< "Other()" << endl;
    }
    
    ~Other()
    {
        cout<< "~Other()" << endl;
    }
};

class Parent
{
public:
    Parent()
    {
        cout<< "Parent()" << endl;
    }
    
    ~Parent()
    {
        cout<< "~Parent()" << endl;
    }
};

class Child : public Parent
{
    Other other;
public:
    Child()
    {
        cout<< "Child()" << endl;
    }
    
    ~Child()
    {
        cout<< "~Child()" << endl;
    }
};

Global gobal;

int main()
{   
    Child c;    //构造顺序 Global() Parent() Other() Child()
                //析构顺序 ~Global() ~Child()  Other() Parent() 
    
    return 0;
}