1.

#include <iostream>

using namespace std;

class Sofa
{
private:
    string sitting;
    string *lying;
public:
    Sofa(){cout << "Sofa::无参构造函数" << endl;}
    Sofa(string sitting,string lying):sitting(sitting),lying(new string(lying))
    {
        cout << "Sofa::有参构造函数" << endl;
    }
    ~Sofa()
    {
        cout << "Sofa::析构函数" << endl;
    }
    Sofa(const Sofa &other):sitting(other.sitting),lying(new string(*(other.lying)))
    {
        cout << "Sofa::拷贝构造函数" << endl;
    }
    Sofa &operator=(const Sofa &other)
    {
        if(this != &other)
        {
            sitting = other.sitting;
            lying = new string(*(other.lying));
        }
        cout << "Sofa::拷贝赋值函数" << endl;
        return *this;
    }
    void show()
    {
        cout << sitting << " " << *lying << endl;
    }

};

class Bed
{
private:
    string sleep;
    string *doing;
public:
    Bed(){cout << "Bed::无参构造函数" << endl;}
    Bed(string sleep,string doing):sleep(sleep),doing(new string(doing))
    {
        cout << "Bed::有参构造函数" << endl;
    }
    Bed(const Bed &other):sleep(other.sleep),doing(new string(*(other.doing)))
    {
        cout << "Bed::拷贝构造函数" << endl;
    }
    Bed &operator=(const Bed &other)
    {
        if(this != &other)
        {
            sleep = other.sleep;
            doing = new string(*(other.doing));
        }
        cout << "Bed::拷贝赋值函数" << endl;
        return *this;
    }
    ~Bed()
    {
        cout << "Bed::析构函数" << endl;
    }
    void show()
    {
        cout << sleep << " " << *doing << endl;
    }
};

class Sofa_bed:public Sofa,public Bed
{
private:
    string color;
    string *size;
public:
    Sofa_bed(){cout << "Sofa_Bad::无参构造函数" << endl;}
    Sofa_bed(string s,string ly,string sl,string d,string c,string size):Sofa(s,ly),Bed(sl,d),color(c),size(new string(size))
    {
        cout << "Sofa_Bad::有参构造函数" << endl;
    }
    Sofa_bed(const Sofa_bed &other):Sofa(other),Bed(other),color(other.color),size(new string(*(other.size)))
    {
        cout << "Sofa_Bad::拷贝构造函数" << endl;
    }
    Sofa_bed &operator=(const Sofa_bed &other)
    {
        if(this != &other)
        {
            color = other.color;
            size = new string(*(other.size));
            Sofa::operator=(other);
            Bed::operator=(other);
        }
        cout << "Sofa_Bad::拷贝赋值函数" << endl;
        return *this;
    }
    ~Sofa_bed()
    {cout << "Sofa_Bad::析构函数" << endl;}
    void show()
    {
        cout << color << " " << *size << endl;
    }

};

int main()
{
    Sofa_bed sd("可坐","可躺","可睡","可做","粉色","200");
    Sofa_bed sd1("可坐","可躺","可睡","可做","黑色","100");
    sd1.Sofa::show();
    sd1.Bed::show();
    sd1.show();
    cout << "=======================" << endl;
    Sofa_bed sd2 = sd1;
    sd2.show();
    cout << "=======================" << endl;
    sd2 = sd;
    sd2.show();
    return 0;
}

思维导图：