对象转换

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Problem G: C++习题对象转换

Time Limit: 1 Sec Memory Limit: 128 MB
Submit: 208 Solved: 110
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Description

定义一个Teacher(教师)类（教师号，姓名，性别，薪金）和一个Student(学生)类（学号，姓名，性别，成绩），二者有一部分数据成员是相同的，num(号码)，name(姓名),sex(性别)。编写程序，将一个Student对象(学生)转换为Teacher(教师)类，只将以上3个相同的数据成员移植过去。可以设想为：一位学生大学毕业了，留校担任教师，他原有的部分数据对现在的教师身份来说仍然是有用的，应当保留并成为其教师数据的一部分。

Input

一个教师的信息和一个学生的信息

Output

学生的信息和学生转换为教师后的信息

Sample Input

10001 Li f 1234.520010 Wang m 89.5

Sample Output

student1:num:20010name:Wangsex:mscore:89.50teacher2:num:20010name:Wangsex:mpay:1500.00

HINT

主函数已给定如下，提交时不需要包含，会自动添加到程序尾部

int main()

{

    cout<<setiosflags(ios::fixed);

    cout<<setprecision(2);

    int num;

    char name[20];

    char sex;

    float score;

    float pay;

    cin>>num>>name>>sex>>pay;

    Teacher teacher1(num,name,sex,pay);

    cin>>num>>name>>sex>>score;

    Student student1(num,name,sex,score);

    cout<<"student1:"<<endl;

    student1.display();

    Teacher teacher2=Teacher(student1);

    teacher2.setpay(1500);

    cout<<"teacher2:"<<endl;

    teacher2.display();

    return 0;

}

#include <iostream>#include<iomanip>#include <cstring>using namespace std;class Teacher;class Student{public:    Student(){};    Student (int &,char [20],char &,float &);    friend class Teacher;    void display()    {        cout<<"num:"<<num<<endl;        cout<<"name:"<<name<<endl;        cout<<"sex:"<<sex<<endl;        cout<<"score:"<<score<<endl;    }private:    int num;    char name[20];    char sex;    float score;};Student::Student(int &i,char j[],char &k,float &l){    num = i;    strcpy(name,j);    sex = k;    score = l;}class Teacher{public:    Teacher(){};    void display();    void setpay(int p);    Teacher (int &,char [20],char &,float &);    Teacher(Student&);private:    int num;    char name[20];    char sex;    float pay;};Teacher::Teacher(int &i,char j[],char &k,float &l){    num = i;    strcpy(name,j);    sex = k;    pay = l;}void Teacher::setpay(int p){    pay = p;}void Teacher::display(){    cout<<"num:"<<num<<endl;    cout<<"name:"<<name<<endl;    cout<<"sex:"<<sex<<endl;    cout<<"pay:"<<pay<<endl;}Teacher::Teacher(Student &s){    num = s.num;    strcpy(name,s.name);    sex = s.sex;}int main(){    cout<<setiosflags(ios::fixed);    cout<<setprecision(2);    int num;    char name[20];    char sex;    float score;    float pay;    cin>>num>>name>>sex>>pay;    Teacher teacher1(num,name,sex,pay);    cin>>num>>name>>sex>>score;    Student student1(num,name,sex,score);    cout<<"student1:"<<endl;    student1.display();    Teacher teacher2=Teacher(student1);    teacher2.setpay(1500);    cout<<"teacher2:"<<endl;    teacher2.display();    return 0;}

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