C++實驗報告九

1、VC+程序設(shè)計實驗報告 實驗九題目：繼承與派生 專 業(yè) 學 生 姓 名 班 級 學 號 指 導 教 師 指 導 單 位 日 期 教師評語 教師簽名： 年 月 日成績評定備 注一、實驗目的1. 理解類的繼承概念，能夠定義和使用類的繼承關(guān)系2掌握派生類的聲明與定義方法3. 掌握公有、私有和保護派生的訪問特性二、實驗內(nèi)容1. 設(shè)計一個大學的類系統(tǒng)，學校有學生、老師、職員，每種人員都有自己的特性，他們之間又有相同的地方。利用繼承機制定義這個系統(tǒng)中的各個類及類上的必須操作。2. 假定車可分為貨車、客車又可分為轎車、面包車和公共汽車。請設(shè)計相應的類層次結(jié)構(gòu)并加以實現(xiàn)。三、實驗結(jié)果及其結(jié)果分析1.(1)源程

2、序：#include <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=

3、 (sex='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;cout<<" 性 別："<<(m_nSex=0?"男":"女")<<end

4、l;cout<<" 年 齡："<<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

5、單位："<<m_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

6、):Person(name,age,sex)strcpy(m_strID, ID); strcpy(m_strClass, Class);void ShowMe()cout<<" 學 號："<<m_strID<<endl;Person:ShowMe();cout<<" 班 級："<<m_strClass<<"n"void setID(char * ID)strcpy(m_strID, ID);void setClass(char *Class) strcpy(m_

7、strClass, Class);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 Sh

8、owMe()Person:ShowMe();cout<<" 工 資："<<m_fSalary<<"n"void main()Teacher teacher1("周明",38,'m',"計算機系",3800);Student std1("王芳",20,'f',"03016003","計算機03");Employee emPloyee1("李鑫",25,'f'

9、;,2000);teacher1.ShowMe();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

10、改各類人員的屬性后："<<endl;teacher1.ShowMe();cout<<"-"<<endl;std1.ShowMe();cout<<"-"<<endl;emPloyee1.ShowMe();（2）實驗結(jié)果： 2.(1)源程序：#include<iostream.h>class vehicle/ 定義基類vehiclepublic: / 公有函數(shù)成員 vehicle(int in_wheels,float in_weight); / 給數(shù)據(jù)成員初始化 int ge

11、t_wheels(); / 獲取車輪數(shù) float get_weight(); / 獲取汽車重量 void setWeels(int wls); void setWeight(float wt); void display() cout<<"車輪數(shù)："<<wheels<<" 汽車重量："<<weight<<endl; private: / 私有數(shù)據(jù)成員 int wheels; / 車輪數(shù) float weight; / 表示汽車承重;vehicle:vehicle(int in_wheels,f

12、loat 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)weight = wt;class truck:public vehicle / 定義貨車類truckprivate: / 新增私有數(shù)據(jù)成員 float weight_load; / 承重

13、public: / 新增公有成員函數(shù) truck(int wheel,float wt,float wl):vehicle(wheel,wt) weight_load = wl; float getLoads() return weight_load; void display() vehicle:display(); cout<<"汽車承重"<<weight_load<<endl; ;/車和客車，客車又可分為轎車、面包車和公共汽車class car:public vehicle/ 定義客車類car int passenger_load;

14、 / 新增私有數(shù)據(jù)成員，表示載客數(shù)public: / 新增公有成員函數(shù)car(int in_wheels,float in_weight,int people=4):vehicle(in_wheels,in_weight)passenger_load = people;int getPassengers()return passenger_load;void setPassengers(int people)passenger_load = people;void display() vehicle:display(); cout<<"載客數(shù)："<<

15、passenger_load<<endl;void main()truck truck1(8,400,100000);/ 貨車car car1(4,20);/ 客車car saloon_car(4,10,5);/ 轎車car microbus(6,10,18);/ 面包車car bus(6,20,30);/ 公共汽車/ 顯示相關(guān)信息truck1.display();cout<<"-"<<endl;car1.display();cout<<"-"<<endl;saloon_car.display();cout<<"-"<<endl;