/* * 程序的版权和版本声明部分 * Copyright (c)2013, 烟台大学计算机学院学生 * All rightsreserved. * 文件名称: object.cpp * 作者: 杨 晨 * 完成日期: 2013年05月20日 * 版本号: v1.0 * 输入描述:无 * 问题描述:无 * 程序输出:无 */ # include <iostream> # include <string.h> # include <iomanip> using namespace std; //定义类 class CPerson { protected: char *m_szName; char *m_szId; int m_nSex;//0:women,1:man int m_nAge; public: CPerson(char *name,char *id,int sex,int age); void Show1(); ~CPerson(); //需要释放建立对象时动态分配的内存 }; class CEmployee:public CPerson { private: char *m_szDepartment; float m_Salary; public: CEmployee(char *name,char *id,int sex,int age,char *department,float salary); void Show2(); ~CEmployee(); }; //成员函数的定义 CPerson::CPerson(char *name,char *id,int sex,int age) { m_szName=new char[strlen(name)+1]; strcpy(m_szName,name); m_szId=new char[strlen(id)+1]; strcpy(m_szId,id); m_nSex=sex; m_nAge=age; } void CPerson::Show1() { cout<<setw(10)<<m_szName<<setw(25)<<m_szId; //setw:设置输出数据的宽度,使用时应#include <iomanip.h> if(m_nSex==0) cout<<setw(7)<<"women"; else cout<<setw(7)<<"man"; cout<<setw(5)<<m_nAge<<endl; } CPerson::~CPerson() { delete [ ]m_szName; delete [ ]m_szId; } CEmployee::CEmployee(char *name,char *id,int sex,int age,char *department,float salary) :CPerson(name,id,sex,age) { m_szDepartment=new char[strlen(department)+1]; strcpy(m_szDepartment,department); m_Salary=salary; } void CEmployee::Show2()//注意派生类输出函数应输出所有成员变量(含基类继承的成员变量)的值 { cout<<setw(10)<<"name"<<setw(25)<<"id"<<setw(7)<<"sex"<<setw(5)<<"age"<<setw(12)<<"department"<<setw(10)<<"salary"<<endl; cout<<setw(10)<<m_szName<<setw(25)<<m_szId; if(m_nSex==0) cout<<setw(7)<<"women"; else cout<<setw(7)<<"man"; cout<<setw(5)<<m_nAge; //由于基类CPerson的成员变量采用了protected属性,因此可采用上述述代码实现,否则若 //基类CPerson的成员变量采用了privated属性,则只能使用CPerson::Show();实现 cout<<setw(12)<<m_szDepartment<<setw(10)<<m_Salary<<endl; } CEmployee::~CEmployee() { delete [ ]m_szDepartment; } //用main函数进行测试 int main() { char name[10],id[19],department[10]; int sex,age; float salary; cout<<"input employee's name,id,sex(0:women,1:man),age,department,salary:\n"; cin>>name>>id>>sex>>age>>department>>salary; CEmployee employee1(name,id,sex,age,department,salary); employee1.Show2(); return 0; }
输出结果: