C++实验报告九

1、VC+程序设计实验报告实验九题目：继承与派生专业学生姓名班级学号指导教师指导单位日期教师 评 语教师签名：年月日成绩 评 疋备注、实验目的1、理解类的继承概念 , 能够定义与使用类的继承关系2. 掌握派生类的声明与定义方法3、掌握公有、私有与保护派生的访问特性 二、实验内容1. 设计一个大学的类系统 ,学校有学生、老师、职员 , 每种人员都有自己的特 性,她们之间又有相同的地方。利用继承机制定义这个系统中的各个类及类上 的必须操作。2. 假定车可分为货车、客车又可分为轿车、面包车与公共汽车。请设计相应 的类层次结构并加以实现。三、实验结果及其结果分析1、(1) 源程序 :#include &l

2、t;iostream 、 h>#include <string 、 h>class Personprotected:char m_strName10;int m_nSex;int m_nAge;public:Person(char *name,int age,char sex)strcpy(m_strName, name);m_nSex= (sex='m'?0:1 );m_nAge = age;void setName(char *name)strcpy(m_strName, name);void setSex(int sex)m_nSex= (sex=

3、9;m'?0:1 );void setAge(int age)m_nAge = age;char * getName()return m_strName;int getAge()return m_nAge;int getSex()return m_nSex;void ShowMe()cout<<"姓名 :"<<m_strName<<endl;coutvv"性别:"<<(m_nSex=0?"男":"女")<<endl;cout<<&quo

4、t; 年 龄 :"<<m_nAge<<endl;class Teacher : public Personchar m_strDept20;int m_fSalary;public:Teacher(char *name,int age,char sex,char *dept,int salary):Person(name,age,sex)strcpy(m_strDept, dept);m_fSalary = salary;void ShowMe() Person:ShowMe();cout<<" 工作单位 :"<<m

5、_strDept<<endl;cout<<" 月薪 :"<<m_fSalary<<endl;void setSalary(int salary)m_fSalary = salary;int getSalary()return m_fSalary;class Student : public Personchar m_strID12;char m_strClass12;public:Student(char *name,int age,char sex,char *ID,char *Class) :Person(name,age

6、,sex) strcpy(m_strID, ID);strcpy(m_strClass, Class);void ShowMe()cout<<" 学号 :"<<m_strID<<endl;Person:ShowMe();cout<<" 班级 :"<<m_strClass<<"n"void setID(char * ID) strcpy(m_strID, ID);void setClass(char *Class)strcpy(m_strClass, Class);

7、char* getID()return m_strID;char* getClass() return m_strClass;class Employee:public Personint m_fSalary;public:Employee(char *name,int age,char sex,int salary) :Person(name,age,sex) m_fSalary = salary;void setSalary(int salary) m_fSalary = salary;int getSalary() return m_fSalary;void ShowMe()Person

8、:ShowMe();cout«"工 资:"<<m_fSalaryvv"n"void main()Teacher teacher1(" 周明",38,'m',"计算机系",3800);Student std1(" 王芳",20,'f,"03016003","计算机 03");Employee emPloyee1("李鑫",25,'f',2000);teacher1 、ShowM

9、e();cout<<""<<endl;std1 、ShowMe();cout<<""<<endl;emPloyee1、ShowMe();teacher1 、setAge(40);teacher1 、setSalary(4500);std1 、setAge(21);emPloyee1、setAge(26);emPloyee1、setSalary(2000);cout<<""<<endl;cout<<" 修改各类人员的属性后 :"<

10、;<endl;teacher1 、ShowMe();cout<<""<<endl;std1 、ShowMe();cout<<""<<endl;emPloyee1、ShowMe();(2) 实验结果 :周明丰芳 竽算机酮弟算机系奏芳20计尊机酮修改备类人员的属性后, 姓 务周明 性臥男 年 龄；4BI工作单隹计算机系 月薪=4S00+ + 号壽龄级its姓隼工5H z u2Press anV keu to con<：i.iiijie2、(1)源程序：#includeviostream 、h>

11、class vehicle/ 定义基类vehicle/ 公有函数成员public:给数据成员初始化vehicle(i nt in_wheels,float in_weight); /int get_wheels(); /获取车轮数float get_weight(); / 获取汽车重量void setWeels(int wls);void setWeight(float wt);void display()cout<<" 车轮数 :"<<wheels<<" 汽车重量 :"<<weight<<en

12、dl; private: / 私有数据成员int wheels;/车轮数float weight;/表示汽车承重;vehicle:vehicle(int in_wheels,float in_weight)wheels = in_wheels;weight = in_weight;float vehicle:get_weight()return weight;int vehicle:get_wheels()return wheels;void vehicle:setWeels(int wls)wheels = wls;void vehicle:setWeight(float wt) weigh

13、t = wt;定义货车类 truck新增私有数据成员承重新增公有成员函数class truck:public vehicle / private:/float weight_load;/public:/truck(int wheel,float wt,float wl):vehicle(wheel,wt) weight_load = wl;float getLoads()return weight_load;void display()vehicle:display();cout<<" 汽车承重 "<<weight_load<<endl;

14、/ 车与客车 , 客车又可分为轿车、面包车与公共汽车class car:public vehicle/ 定义客车类 carint passenger_load;/ 新增私有数据成员 , 表示载客数in_weight,intpublic: / 新增公有成员函数 car(int in_wheels,floatpeople=4):vehicle(in_wheels,in_weight)passenger_load = people;int getPassengers()return passenger_load;void setPassengers(int people)passenger_load

15、 = people;void display()vehicle:display();cout<<" 载客数 :"<<passenger_load<<endl;void main()truck truck1(8,400,100000); / 货车car car1(4,20);/ 客车car saloon_car(4,10,5);/ 轿车car microbus(6,10,18);/面包车car bus(6,20,30);/ 公共汽车/显示相关信息truckl、display。；cout«""<<e ndl;carl、display();cout«""<<e ndl;saloon_car、display();cout«""<<e ndl;microbus、display();cout«""<<e ndl;bus、display();口 | 回(2)实验结果：'D:Pragram FileMicFOsaft Vual £tudioMicrosoft Visual毛轮邀:$汽车重量:400汽