#include <iostream>
using namespace std;

class A
{
public:
    int a;
    A(int a):a(a){}
};
class B:virtual public A
{
public:
    int b;
    B(int b,int a):b(b),A(a){}
};
class C:virtual public A
{
public:
    int c;
    C(int a,int c):c(c),A(a){}
};
//汇集子类
class D:public B,public C
{
public:
    int d;
    void show()
    {
        cout << B::a << endl;
    }
    D(int a,int b,int c,int d):B(b,a),C(a,c),A(a),d(d){}
};
int main()
{
    //实例化汇集子类D的类对象
    D d1(10,23,90,100);
    d1.a = 90;//对于公共基类继承加上virual后，在汇集子类中只能找到一个属性a
    d1.B::a = 80;
    d1.show();
    cout << d1.B::A::a<< endl;
    return 0;
}

class F
{
    int *p;
    const string name;
}
class C:public F
{
    int *age;
}

#include <iostream>

using namespace std;

class F
{
    int *p;
    const string name;
public:

    F():p(new int),name("张三"){}  //让p成员指向堆区的空间
    F(int a,string name):p(new int(a)),name(name){cout<<"F有参构造"<<endl;}
    F(const F &other):p(new int(*(other.p))),name(other.name)
    {
        cout<<"F的深度拷贝"<<endl;
    }
    ~F()
    {
        cout<<"准备释放空间: "<<p<<endl;
        delete p;
        cout<<"F的析构"<<endl;
    }
    F &operator=(const F &other)
    {
        *(this->p) = *(other.p);
        cout<<"F拷贝赋值"<<endl;
        return *this;
    }
    void show()
    {
        cout<<"p的指向:"<<p<<endl;
        cout<<"*p = "<<*p<<endl;
        cout<<"name = "<<name<<endl;
    }
};
class C:public F
{
    int *age;
public:
    C():F(),age(new int){}    //C的无参构造
    C(int age,int a,string name):age(new int(age)),F(a,name)
    {
        cout<<"C的有参构造"<<endl;
    }
    C(const C &other):age(new int(*(other.age))),F(other)
    {
        cout<<"C的深度拷贝"<<endl;
    }
    ~C()
    {
        cout<<"C的析构"<<endl;
    }
    C &operator=(const C &other)
    {
        *(this->age)=*(other.age);
        F::operator=(other);
        return *this;
    }
};

int main()
{
    C c1(21,90,"历史");
    C c2 = c1;
    cout<<" c2 深度拷贝"<<endl;
    c2.show();
    cout<<" c1 "<<endl;
    c1.show();
    C c3;
    c3 = c2;
    cout<<" c2 拷贝赋值"<<endl;
    c2.show();
    cout<<"-----------------------------"<<endl;
    cout<<" c3 "<<endl;
    c3.show();
    cout<<endl;
    cout<<"开始析构"<<endl;
    return 0;
}