2月5日作业

题目：

封装一个学生类（Student）：包括受保护成员：姓名、年龄、分数，完成其相关函数，以及show

在封装一个领导类（Leader）:包括受保护成员：岗位、工资，完成其相关函数及show

由以上两个类共同把派生出学生干部类：引入私有成员：管辖人数，完成其相关函数以及show函数

在主程序中，测试学生干部类：无参构造、有参构造、拷贝构造、拷贝赋值、show

代码：

#include <iostream>

using namespace std;

class Student
{
protected:
    string name;
    int old;
    double score;
public:
    Student(){cout<<"Student::无参构造"<<endl;}
    Student(string n,int o,double s):name(n),old(o),score(s){cout<<"Student::有参构造"<<endl;}
    Student(const Student &other):name(other.name),old(other.old),score(other.score){cout<<"Student::拷贝构造"<<endl;}
    Student &operator=(const Student &other)
    {
        this->name=other.name;
        this->old=other.old;
        this->score=other.score;
        cout<<"Student::拷贝赋值"<<endl;
        return *this;
    }
    ~Student(){cout<<"Student::析构函数"<<endl;}
    void show()
    {
        cout<<"********************"<<endl;
        cout<<"Student::name="<<name<<endl;
        cout<<"Student::old="<<old<<endl;
        cout<<"Student::score="<<score<<endl;
        cout<<"********************"<<endl;
    }
};

class Leader
{
protected:
    string job;
    int money;
public:
    Leader(){cout<<"Leader::无参构造"<<endl;}
    Leader(string j,int m):job(j),money(m){cout<<"Leader::有参构造"<<endl;}
    ~Leader(){cout<<"Leader::析构函数"<<endl;}
    Leader(const Leader &other):job(other.job),money(other.money){cout<<"Leader::拷贝构造"<<endl;}
    Leader &operator=(const Leader &other)
    {
        this->job=other.job;
        this->money=other.money;
        cout<<"Leader::拷贝赋值"<<endl;
        return *this;
    }
    void show()
    {
        cout<<"********************"<<endl;
        cout<<"Leader::job="<<job<<endl;
        cout<<"Leader::money="<<money<<endl;
        cout<<"********************"<<endl;
    }
};

class Student_leader:public Student,public Leader
{
protected:
    int num;
public:
    Student_leader(){cout<<"Student_leader::无参构造"<<endl;}
    Student_leader(string n,int o,double s,string j,int m,int nu):Student(n,o,s),Leader(j,m),num(nu){cout<<"Student_leader::有参构造"<<endl;}
    ~Student_leader(){cout<<"Student_leader::析构函数"<<endl;}
    Student_leader(const Student_leader &other):Student(other),Leader(other),num(other.num){cout<<"Student_leader::拷贝构造"<<endl;}
    Student_leader &operator=(const Student_leader &other)
    {
        if(this!=&other)
        {
            this->num=other.num;
            Student::operator=(other);
            Leader::operator=(other);
        }
        cout<<"Student_leader::拷贝赋值"<<endl;
        return *this;
    }
    void show()
    {
        cout<<"********************"<<endl;
        cout<<"Student_leader::name="<<name<<endl;
        cout<<"Student_leader::old="<<old<<endl;
        cout<<"Student_leader::score="<<score<<endl;
        cout<<"Student_leader::job="<<job<<endl;
        cout<<"Student_leader::money="<<money<<endl;
        cout<<"Student_leader::num="<<num<<endl;
        cout<<"********************"<<endl;
    }
};

int main()
{
    Student_leader a1;
    a1.show();

    Student_leader a2("张三",19,77.5,"主管",200,5);
    a2.show();

    Student_leader a3=a2;
    a3.show();

    a1=a3;
    a1.show();

    return 0;
}

运行结果：