C++ //多繼承語法 C++中允許一個類繼承多個類

//多繼承語法 C++中允許一個類繼承多個類
#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;
};

//子類 需要繼承Base1 和 Base2
//語法：class 子類 ：繼承方式 父類1 逗號，繼承方式 父類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

    //當父類中出現同名成員 需要加作用域區分
    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;

}