(1)定义一个名为CPerson的类,有以下私有成员:姓名、身份证号、性别和年龄,成员函数:构造函数、析构函数、输出信息的函数。并在此基础上派生出CEmployee类,派生类CEmployee增加了两个新的数据成员,分别用于表示部门和薪水。要求派生类CEmployee的构造函数显示调用基类CPerson的构造函数,并为派生类CEmployee定义析构函数,定义输出信息的函数。
/* *Copyright (c) 2015,烟台大学计算机学院 *All gight reserved. *文件名称:Demo.cpp *作者:邵帅 *完成时间:2015年05月25日 *版本号:v1.0 */ #include <iostream> #include <cstring> using namespace std; class CPerson { protected: string m_szName; string m_szId; int m_nSex;//0:women,1:man int m_nAge; public: CPerson(string name,string id,int sex,int age); void Show1(); ~CPerson(); }; CPerson::CPerson(string name,string id,int sex,int age):m_szName(name),m_szId(id),m_nSex(sex),m_nAge(age){} void CPerson::Show1() { cout<<m_szName<<" "<<m_szId; if (m_nSex==1) cout<<"men"; else if (m_nSex==0) cout<<"women"; cout<<m_nAge; } CPerson::~CPerson() {} class CEmployee:public CPerson { private: string m_szDepartment; double m_Salary; public: CEmployee(string name,string id,int sex,int age,string department,double salary); void Show2(); ~CEmployee(); }; CEmployee::CEmployee(string name,string id,int sex,int age,string department,double salary):CPerson(name,id,sex,age),m_szDepartment(department),m_Salary(salary){} void CEmployee::Show2() { cout<<"name "<<"id "<<"sex "<<"age "<<"department "<<"salary"<<endl; cout<<m_szName<<" "<<m_szId<<" "; if (m_nSex==1) cout<<"men "; else if (m_nSex==0) cout<<"women "; cout<<m_nAge; cout<<" "<<m_szDepartment<<" "<<m_Salary<<endl; } CEmployee::~CEmployee() {} int main() { string name,id,department; int sex,age; double 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; }
(2)字符串除了用C++扩充的string类型外,按C语言的传统,还可以用char *表示。请将类声明中的string全部改为char *后,重新写一遍程序(此时的区别是,类中有指针成员,构造和析构函数需要考虑深复制的问题了。)
/* *Copyright (c) 2015,烟台大学计算机学院 *All gight reserved. *文件名称:Demo.cpp *作者:邵帅 *完成时间:2015年05月25日 *版本号:v1.0 */ #include <iostream> #include <cstring> using namespace std; 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(); }; CPerson::CPerson(char *name,char *id,int sex,int age):m_nSex(sex),m_nAge(age) { m_szName=new char[strlen(name)+1]; strcpy(m_szName,name); m_szId=new char[strlen(id)+1]; strcpy(m_szId,id); } void CPerson::Show1() { cout<<m_szName<<" "<<m_szId; if (m_nSex==1) cout<<"men"; else if (m_nSex==0) cout<<"women"; cout<<m_nAge; } CPerson::~CPerson() { delete []m_szName; delete []m_szId; } class CEmployee:public CPerson { private: char *m_szDepartment; double m_Salary; public: CEmployee(char *name,char *id,int sex,int age,char *department,double salary); void Show2(); ~CEmployee(); }; CEmployee::CEmployee(char *name,char *id,int sex,int age,char *department,double salary):CPerson(name,id,sex,age),m_Salary(salary) { m_szDepartment=new char[strlen(department)+1]; strcpy(m_szDepartment,department); } void CEmployee::Show2() { cout<<"name "<<"id "<<"sex "<<"age "<<"department "<<"salary"<<endl; cout<<m_szName<<" "<<m_szId<<" "; if (m_nSex==1) cout<<"men "; else if (m_nSex==0) cout<<"women "; cout<<m_nAge; cout<<" "<<m_szDepartment<<" "<<m_Salary<<endl; } CEmployee::~CEmployee() { delete []m_szDepartment; } int main() { char name[8],id[20],department[200]; int sex,age; double 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; }
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时间: 2024-11-09 17:17:08