10-A. 在职研究生（多重继承）

10-多继承
题目描述
1、建立如下的类继承结构：

1.    定义一个人员类CPeople，其属性（保护类型）有：姓名、性别、年龄；
   

2.    从CPeople类派生出学生类CStudent，添加属性：学号和入学成绩；
   

3.    从CPeople类再派生出教师类CTeacher，添加属性：职务、部门；
   

4.    从CStudent和CTeacher类共同派生出在职研究生类CGradOnWork，添加属性：研究方向、导师；
   

2、分别定义以上类的构造函数、输出函数print及其他函数（如需要）。
3、在主函数中定义各种类的对象，并测试之。

输入
第一行：姓名性别年龄
第二行：学号成绩
第三行：职务部门
第四行：研究方向导师

输出
第一行：People:
第二行及以后各行：格式见Sample

wang-li m 23
2012100365 92.5
assistant computer
robot zhao-jun

People:
Name: wang-li
Sex: m
Age: 23

Student:
Name: wang-li
Sex: m
Age: 23
No.: 2012100365
Score: 92.5

Teacher:
Name: wang-li
Sex: m
Age: 23
Position: assistant
Department: computer

GradOnWork:
Name: wang-li
Sex: m
Age: 23
No.: 2012100365
Score: 92.5
Position: assistant
Department: computer
Direction: robot
Tutor: zhao-jun

#include<iostream>
using namespace std;

class people
{
protected:
    string name,sex;
    int age;
public:
    people():name("0"),sex("0"),age(0){}
    people(string n,string s,int a):name(n),sex(s),age(a){}
    void print()
    {
        cout<<"People:"<<endl;
        cout<<"Name: "<<name<<endl<<"Sex: "<<sex<<endl<<"Age: "<<age<<endl;
    }
};

class student:virtual public people
{
protected:
    int number;
    double grade;
public:
    student(string n,string s,int a,int num,double g):people(n,s,a),number(num),grade(g){}
    void print()
    {
        cout<<"Student:"<<endl;
        cout<<"Name: "<<name<<endl<<"Sex: "<<sex<<endl<<"Age: "<<age<<endl;
        cout<<"No.: "<<number<<endl<<"Score: "<<grade<<endl;
    }
};

class teacher:virtual public people
{
protected:
    string job,department;
public:
    teacher(string n,string s,int a,string j,string d):people(n,s,a),job(j),department(d){}
    void print()
    {
        cout<<"Teacher:"<<endl;
        cout<<"Name: "<<name<<endl<<"Sex: "<<sex<<endl<<"Age: "<<age<<endl;
        cout<<"Position: "<<job<<endl<<"Department: "<<department<<endl;
    }
};

class gradonwork:public student,public teacher
{
    string direction,tutor;
public:
    gradonwork(string n,string s,int a,int num,double g,string j,string d,string dir,string t):people(n,s,a),student(n,s,a,num,g),teacher(n,s,a,j,d),direction(dir),tutor(t){}
    void print()
    {
        cout<<"GradOnWork:"<<endl;
        cout<<"Name: "<<name<<endl<<"Sex: "<<sex<<endl<<"Age: "<<age<<endl;
        cout<<"No.: "<<number<<endl<<"Score: "<<grade<<endl<<"Position: "<<job<<endl<<"Department: "<<department<<endl;
        cout<<"Direction: "<<direction<<endl<<"Tutor: "<<tutor;
    }
};

int main()
{
    string name,sex,job,department,name2,direction;
    int age,number;
    double grade;
    
    cin>>name>>sex>>age>>number>>grade>>job>>department>>direction>>name2;
    people p(name,sex,age);
    student s(name,sex,age,number,grade);
    teacher t(name,sex,age,job,department);
    gradonwork g(name,sex,age,number,grade,job,department,direction,name2);
    
    p.print();cout<<endl;
    s.print();cout<<endl;
    t.print();cout<<endl;
    g.print();
}