C++ //多继承语法 C++中允许一个类继承多个类

//多继承语法 C++中允许一个类继承多个类
#include <iostream>
#include <string>
using namespace std;

class Base1
{
public:
    Base1()
    {
        m_A = 100;
    }
    int m_A;
};

class Base2
{
public:
    Base2()
    {
        m_A = 200;
    }
    int m_A;
};

//子类 需要继承Base1 和 Base2
//语法：class 子类 ：继承方式 父类1 逗号，继承方式 父类2......
class Son :public Base1, public Base2
{
public:
    Son()
    {
        m_C = 300;
        m_D = 400;
    }
    int m_C;
    int m_D;
};

void test01()
{
    Son s;
    cout << "sizeof Son = " << sizeof(s) << endl;  //16

    //当父类中出现同名成员 需要加作用域区分
    cout << "Base1-m_A = " << s.Base1::m_A << endl;
    cout << "Base2-m_A = " << s.Base2::m_A << endl;
}
int main()
{

    test01();


    system("pause");

    return 0;

}