问题及代码:
/*copyright 计算机与控制工程学院 完成日期:2016年5月8日 作者:马艳艳 问题描述:wu 输入描述:职工信息 输出描述:职工信息 */ #include <iostream> #include <cstring> #include <iostream> #include <iomanip> using namespace std; class CPerson { protected: char *m_szName; char *m_szID; int m_nSex; int m_nAge; public: CPerson(char *name,char *ID,int sex,int age); void show1(); ~CPerson(); }; 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(); }; 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; } 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; }
运行结果:
知识点总结:
在继承中用指针,过程中利用string的函数进行复制,就是相当于其中的赋值然后,再利用私有成员的时候用Cperson::show来实现、
时间: 2024-10-01 04:47:40