C++学习day5

1>思维导图

2> 多继承代码实现沙发床

#include <iostream>using namespace std;
//创建沙发类
class sofa
{
private:string sitting;
public:sofa(){cout << "sofa的无参构造函数" << endl;}sofa(string s):sitting(s){cout << "sofa的有参构造函数" << endl;}//拷贝构造函数sofa(const sofa &other):sitting(other.sitting){cout << "sofa的拷贝构造函数" << endl;}//拷贝赋值函数sofa &operator=(const sofa &other){cout << "sofa的拷贝赋值函数" << endl;sitting=other.sitting;return *this;}//析构函数~sofa(){cout << "sofa的析构函数" << endl;}void show(){cout << "sofa" << endl;}};
//创建床类
class bed
{
protected:string sleeping;
public:bed(){cout << "bed的无参构造函数" << endl;}bed(string b):sleeping(b){cout << "bed的有参构造函数" << endl;}//拷贝构造函数bed(const bed &other):sleeping(other.sleeping){cout << "bed的拷贝构造函数" << endl;}//拷贝赋值函数bed &operator=(const bed &other){cout << "bed的拷贝赋值函数" << endl;sleeping=other.sleeping;return *this;}//析构函数~bed(){cout << "bed的析构函数" << endl;}void show(){cout << "bed" << endl;}};
//构造沙发床类
class sofa_bed: public bed,public sofa
{
private:string color;
public:sofa_bed(){cout << "sofa_bed的无参构造函数" << endl;}sofa_bed(string s,string b,string c):bed(b),sofa(s),color(c){cout << "sofa_bed的有参构造函数" << endl;}//拷贝构造函数sofa_bed(const sofa_bed &other):bed(other.sleeping),sofa(other),color(other.color){cout << "sofa_bed的拷贝构造函数" << endl;}//拷贝赋值函数sofa_bed &operator=(const sofa_bed &other){cout << "sofa_bed的拷贝赋值函数" << endl;color=other.color;sofa::operator=(other);sleeping=other.sleeping;return *this;}//析构函数~sofa_bed(){cout << "sofa_bed的析构函数" << endl;}void show(){cout << "sofa_bed的show" << endl;}};int main()
{cout << "Hello World!" << endl;sofa_bed s1;sofa_bed s2("坐着","睡觉","yellow");s2.show();sofa_bed s3(s2);s1=s2;return 0;
}