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第十一周项目二 职员有薪水了(2)

2015-05-16 20:31 471 查看
/* Copyright (c) 2014, 烟台大学计算机学院
* All rights reserved.
* 文件名称:test.cpp
* 作    者:刘佳琦
* 完成日期:2015年 5 月 16 日
* 版 本 号:v1.0
*
* 问题描述: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。)
* 程序输入:
* 程序输出:
*/
#include <iostream>
#include <string.h>
#include <iomanip>
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();
};

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<<m_szName<<"          "<<m_szId;
    if(m_nSex==0)
        cout<<"women";
    else
        cout<<"man";
    cout<<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()
{
    cout<<"name "<<"      id"<<"               sex"<<"    age"<<"    department"<<"   salary"<<endl;
    cout<<m_szName<<"       "<<m_szId;
    if(m_nSex==0)
        cout<<"    women";
    else
        cout<<"    man";
    cout<<"        "<<m_nAge;
    cout<<"        "<<m_szDepartment<<"        "<<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:



学习心得:

在构造函数和析构函数上有了变化,也就是深复制,开辟一个新的数组然后将它释放掉。
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