C++ 第四次实验

实验4 继承与派生

实验步骤：
第一步：调试基类Person

#include<iostream>
#include<string>
#include<fstream>
using namespace std;
class Person{
public:
    void input();
    void output();
protected:
    int number;
    string name;
    string sex;
    double salary;
};
void Person::input()
{
    cout<<"工号：";cin>>number;
    cout<<"姓名：";cin>>name;
    cout<<"性别：";cin>>sex;
}
void Person::output()
{
    cout<<"+--------------------------------+"<<endl;
    cout<<"工号：";cout<<number<<endl;
    cout<<"名字：";cout<<name<<endl;
    cout<<"性别：";cout<<sex<<endl;
    cout<<"+--------------------------------+"<<endl;
}
int main()
{
    Person p1;
    p1.input();
    p1.output();
}

---

第二步：调试派生类Teacher
在上一步的基础上增加下面的代码:

class Teacher:public virtual Person{
public:
    void input();
    void output();
    void pay();
protected:
    int teaching_hours;
    int title;
};
void Teacher::input()
{
    Person::input();
    cout<<"课时：";cin>>teaching_hours;
    cout<<"1------教授"<<endl;
    cout<<"2------副教授"<<endl;
    cout<<"3------讲师"<<endl;
    cout<<"4------助教"<<endl;
    cout<<"请选择职称：";cin>>title;

}
void Teacher::output()
{
    Person::output();
    cout<<"课时：";cout<<teaching_hours;
    cout<<"职称：";
    if(title==1)
        cout<<"教授"<<endl;
    else if(title==2)
        cout<<"副教授"<<endl;
    else if(title==3)
        cout<<"讲师"<<endl;
    else if(title==4)
        cout<<"助教"<<endl;
}
void Teacher::pay()
{
    if(title==1)//教授
        salary=teaching_hours*150+5000;
    else if(title==2)//副教授
        salary=teaching_hours*120+4000;
    else if(title==3)//讲师
        salary=teaching_hours*100+3000;
    else if(title==4) //助教
        salary=teaching_hours*80+2000;
    cout<<"工资："<<salary<<endl;
}

---

并将主函数修改为:

int main()
{
    Teacher t1;
    t1.input();
    t1.output();
    t1.pay();
}

---

第三步：调试派生类Temporary_workers
在上一步的基础上增加下面的代码:

class Temporary_worker:public virtual Person{
public:
    Temporary_worker():hourlyPay(30){};
    void input();
    void pay();
private:
    double hourlyPay;
    int workingHours;
};
void Temporary_worker::input()
{
    Person::input();
    cout<<"当月工作时数：";cin>>workingHours;
}
void Temporary_worker::pay()
{
    salary=workingHours*hourlyPay;
    cout<<"当月薪水："<<salary<<endl;
}

---

并将主函数修改为:

int main()
{
    Temporary_worker tw1;
    tw1.input();
    tw1.output();
    tw1.pay();
}

---

第四步：调试派生类Staff
在上一步的基础上增加下面的代码:

class Staff: public virtual Person{
public:
    Staff(){};
    void input();
    void output();
    void pay();
protected:
    double position;//值位
};
void Staff::input()
{
    Person::input();
    cout<<"1------院级"<<endl;
    cout<<"2------处级"<<endl;
    cout<<"3------科级"<<endl;
    cout<<"4------一般工作人员"<<endl;
    cout<<"请选择值位：";cin>>position;
}
void Staff::output()
{
    Person::output();
    if(position==1)
        cout<<"职位：院级"<<endl;
    else if(position==2)
        cout<<"职位：处级"<<endl;
    else if(position==3)
        cout<<"职位：科级"<<endl;
    else if(position==4)
        cout<<"职位：一般工作人员"<<endl;
}
void Staff::pay()
{
    if(position==1)
        salary=8000;
    else if(position==2)
        salary=6800;
    else if(position==3)
        salary=6600;
    else if(position==4)
        salary=5000;
    cout<<"当月薪水："<<salary<<endl;
}

---

第五步：调试Staff_Teacher类

class Staff_Teacher:public Staff,public Teacher{
public :
    Staff_Teacher(){};
    void input();
    void output();
    void pay();
};
void Staff_Teacher::input()
{
    Teacher::input();
    cout<<"1------院级"<<endl;
    cout<<"2------处级"<<endl;
    cout<<"3------科级"<<endl;
    cout<<"4------一般工作人员"<<endl;
    cout<<"请选择职位:";cin>>position;
}
void Staff_Teacher::output()
{
    Teacher::output();
    if(position==1)
        cout<<"职位：院级"<<endl;
    else if(position==2)
        cout<<"职位：处级"<<endl;
    else if(position==3)
        cout<<"职位：科级"<<endl;
    else if(position==4)
        cout<<"职位：一般工作人员"<<endl;
}
void Staff_Teacher::pay()
{
    Staff::pay();
    if(title==1)//教授
        salary=teaching_hours*1.5+5000+salary;
    else if(title==2)//副教授
        salary=teaching_hours*1.2+4000+salary;
    else if(title==3)//讲师
        salary=teaching_hours*1.2+3000+salary;
    else //助教
        salary=teaching_hours*1.2+2000+salary;
        cout<<"工资："<<salary<<endl;
}

---

主函数修改为:

int main()
{
    Staff_Teacher st1;
    st1.input();
    st1.output();
    st1.pay();
}

---

完整代码：

#include<iostream>
#include<string>
#include<fstream>
using namespace std;
class Person{
public:
    void input();
    void output();
protected:
    int number;
    string name;
    string sex;
    double salary;
};
void Person::input()
{
    cout<<"工号：";cin>>number;
    cout<<"姓名：";cin>>name;
    cout<<"性别：";cin>>sex;
}
void Person::output()
{
    cout<<"+--------------------------------+"<<endl;
    cout<<"工号：";cout<<number<<endl;
    cout<<"名字：";cout<<name<<endl;
    cout<<"性别：";cout<<sex<<endl;
    cout<<"+--------------------------------+"<<endl;
}
class Teacher:public virtual Person{
public:
    void input();
    void output();
    void pay();
protected:
    int teaching_hours;
    int title;
};
void Teacher::input()
{
    Person::input();
    cout<<"课时：";cin>>teaching_hours;
    cout<<"1------教授"<<endl;
    cout<<"2------副教授"<<endl;
    cout<<"3------讲师"<<endl;
    cout<<"4------助教"<<endl;
    cout<<"请选择职称：";cin>>title;

}
void Teacher::output()
{
    Person::output();
    cout<<"课时：";cout<<teaching_hours;
    cout<<"职称：";
    if(title==1)
        cout<<"教授"<<endl;
    else if(title==2)
        cout<<"副教授"<<endl;
    else if(title==3)
        cout<<"讲师"<<endl;
    else if(title==4)
        cout<<"助教"<<endl;
}
void Teacher::pay()
{
    if(title==1)//教授
        salary=teaching_hours*150+5000;
    else if(title==2)//副教授
        salary=teaching_hours*120+4000;
    else if(title==3)//讲师
        salary=teaching_hours*100+3000;
    else if(title==4) //助教
        salary=teaching_hours*80+2000;
    cout<<"工资："<<salary<<endl;
}
class Temporary_worker:public virtual Person{
public:
    Temporary_worker():hourlyPay(30){};
    void input();
    void pay();
private:
    double hourlyPay;
    int workingHours;
};
void Temporary_worker::input()
{
    Person::input();
    cout<<"当月工作时数：";cin>>workingHours;
}
void Temporary_worker::pay()
{
    salary=workingHours*hourlyPay;
    cout<<"当月薪水："<<salary<<endl;
}
class Staff: public virtual Person{
public:
    Staff(){};
    void input();
    void output();
    void pay();
protected:
    double position;//值位
};
void Staff::input()
{
    Person::input();
    cout<<"1------院级"<<endl;
    cout<<"2------处级"<<endl;
    cout<<"3------科级"<<endl;
    cout<<"4------一般工作人员"<<endl;
    cout<<"请选择值位：";cin>>position;
}
void Staff::output()
{
    Person::output();
    if(position==1)
        cout<<"职位：院级"<<endl;
    else if(position==2)
        cout<<"职位：处级"<<endl;
    else if(position==3)
        cout<<"职位：科级"<<endl;
    else if(position==4)
        cout<<"职位：一般工作人员"<<endl;
}
void Staff::pay()
{
    if(position==1)
        salary=8000;
    else if(position==2)
        salary=6800;
    else if(position==3)
        salary=6600;
    else if(position==4)
        salary=5000;
    cout<<"当月薪水："<<salary<<endl;
}
class Staff_Teacher:public Staff,public Teacher{
public :
    Staff_Teacher(){};
    void input();
    void output();
    void pay();
};
void Staff_Teacher::input()
{
    Teacher::input();
    cout<<"1------院级"<<endl;
    cout<<"2------处级"<<endl;
    cout<<"3------科级"<<endl;
    cout<<"4------一般工作人员"<<endl;
    cout<<"请选择职位:";cin>>position;
}
void Staff_Teacher::output()
{
    Teacher::output();
    if(position==1)
        cout<<"职位：院级"<<endl;
    else if(position==2)
        cout<<"职位：处级"<<endl;
    else if(position==3)
        cout<<"职位：科级"<<endl;
    else if(position==4)
        cout<<"职位：一般工作人员"<<endl;
}
void Staff_Teacher::pay()
{
    Staff::pay();
    if(title==1)//教授
        salary=teaching_hours*1.5+5000+salary;
    else if(title==2)//副教授
        salary=teaching_hours*1.2+4000+salary;
    else if(title==3)//讲师
        salary=teaching_hours*1.2+3000+salary;
    else //助教
        salary=teaching_hours*1.2+2000+salary;
        cout<<"工资："<<salary<<endl;
}
int main()
{
    Staff_Teacher st1;
    st1.input();
    st1.output();
    st1.pay();
}

---

日期：2020年3月19日