9、多继承简单应用

从运行结果中可以得到多继承构造函数和析构函数的执行顺序

#include <iostream.h>

class A
{
private:
    int a, b;
public:
    A(int aa, int bb):a(aa), b(bb){cout<<"A构造函数"<<endl;}
    ~A(){cout<<"A析构函数"<<endl;}
    void displayA(){cout<<"A-a = "<<a<<"A-b = "<<b<<endl;}
};

class B
{
private:
    int c, d;
public:
    B(int cc, int dd):c(cc), d(dd){cout<<"B构造函数"<<endl;}
    ~B(){cout<<"B析构函数"<<endl;}
    void displayB(){cout<<"B-c = "<<c<<"B-d = "<<d<<endl;}
};


class C:public A, public B
{
private:
    int e;
public:
    C(int aa, int bb, int cc, int dd, int ee):A(aa, bb), B(cc, dd), e(ee){cout<<"C构造函数"<<endl;}
    ~C(){cout<<"C析构函数"<<endl;}
    void displayC(){cout<<"C-e = "<<e<<endl;}
};

int main()
{
    C t(1, 2, 3, 4, 5);
    t.displayA();
    t.displayB();
    t.displayC();

    return 0;
}