实验报告六：继承与派生(共4页)

1、精选优质文档-倾情为你奉上实验6 继承与派生一、实验目的1理解继承与派生、单继承与多继承的概念；2理解基类与派生类的定义及使用方法，派生类对象的定义与初始化方法；3理解继承与派生过程中，把派生类作为基类构成类族的概念及虚基类的概念。二、实验环境一台PC机，Windows XP操作系统，Visual C+ 6.0开发环境。三、实验内容1、由在校人员类(Person)作为基类派生出学生类(Student)：实验步骤： #include <iostream>#include <string>using namespace std;class Personpublic:Pers

2、on(int i,char *n, char s, int a)ID=i;name=n;sex=s;age=a; int getID()return ID;void show()cout<<"ID: "<<ID<<endl;cout<<"name : "<<name<<endl;cout<<"sex: "<<sex<<endl;cout<<"age: "<<age<<end

3、l;private:int ID;string name;char sex;int age;class Student:public Personpublic: Student(int i,char *n,char s,int a,float m,float p,float e,float c):Person(i,n,s,a)math=m;physical=p;english=e;cpp=c;total=math+physical+english+cpp; void show() Person:show(); cout<<"math: "<<math

4、<<endl; cout<<"physical: "<<physical<<endl; cout<<"english: "<<english<<endl; cout<<"C+: "<<cpp<<endl; cout<<"total: "<<total<<endl; private:float math,physical,english,cpp,total;voi

5、d main()Person p1(1,"张帅",'M',22); p1.show();cout<<endl;Student s1(9901,"林维",'S',21,65,70,75,88);s1.show();实验结果：2、由学生类、课程类作为基类，共同派生出选课类。实验步骤：#include <iostream>#include <string>using namespace std;class Studentpublic:Student(int i,char *n, char s,

6、 int a)No=i;Name=n;Sex=s;Age=a; void show()cout<<"No: "<<No<<endl;cout<<"Name : "<<Name<<endl;cout<<"Sex: "<<Sex<<endl;cout<<"Age: "<<Age<<endl;private:int No;string Name;char Sex;int Age;

7、class Lessonpublic: Lesson(int no,char *name,int hour)Cno=no;Cname=name;Chour=hour;void show()cout<<"Cno: "<<Cno<<endl;cout<<"Cname: "<<Cname<<endl;cout<<"Chour: "<<Chour<<endl;private:int Cno; string Cname; int Chou

8、r;class SL:public Student,public Lessonpublic:SL(int i,char *n,char s,int a,int no,char *name,int hour, int score):Student(i,n,s,a),Lesson(no,name,hour)Score=score;void show()Student:show();Lesson:show();cout<<"Score: "<<Score<<endl;private:int Score;void main()SL s1(25,&

9、quot;MrLin",'S',25,911,"c+",25,100);s1.show();实验结果：3、由二维坐标点类Point作为基类派生出圆类Circle；再由圆类Circle作为基类派生出圆柱体类Cylinder。实验步骤：#include <iostream>#include <string>using namespace std;class Point public:Point(int xx=0, int yy=0)x=xx;y=yy;int getX() return x; int getY() return

10、y; void show()cout<<"("<<x<<","<<y<<")"<<endl;protected:int x,y;class Circle:virtual public Pointpublic:Circle(int xx=0,int yy=0,float r=1):Point(xx,yy)radius=r;int getR() return radius;void show()cout<<"圆心坐标:" Point:s

11、how(); cout<<"圆半径:"<<radius<<endl;protected:float radius;class cylinder:public Circlepublic:cylinder(int xx=0,int yy=0,float r=1,float h=2):Point(xx,yy),Circle(r)height=h;int getH() return height;void show()Circle:show(); cout<<"圆柱体高度:"<<height<<endl;priv