12月4日作业

完成沙发床的多继承

#include <iostream>

using namespace std;

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

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

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

int main()
{
    Sofa_Bed sb1;

    Sofa_Bed sb2("sit",2000,"sleep",2,"blue");
    sb2.show();
    sb1 = sb2;
    sb1.show();
    return 0;
}

运行结果

思维导图