第11周 项目二-职员有薪水了（2）

（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。）

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();
};
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;
}

代码：

#include <iostream>
#include <cstring>
#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;
    double m_Salary;
public:
    CEmployee(char *name,char *id,int sex,int age,char *department,double salary);
    void Show2();

};

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(5)<<m_szName<<setw(18)<<m_szId;
    if(m_nSex==0)
        cout<<setw(7)<<"women";
    else cout<<setw(7)<<"man";
    cout<<setw(8)<<m_nAge;
}
CPerson::~CPerson() {}
CEmployee::CEmployee(char *name,char *id,int sex,int age,char *department,double salary):CPerson(name,id,sex,age)
{
    m_szDepartment=new char[strlen(department)+1];
    strcpy(m_szDepartment,department);
    m_Salary=salary;
}
void CEmployee::Show2()
{
    cout<<setw(5)<<"name"<<setw(18)<<"id"<<setw(7)<<"sex"<<setw(8)<<"age"<<setw(12)<<"department"<<setw(10)<<"salary"<<endl;
    Show1();
    cout<<setw(12)<<m_szDepartment<<setw(10)<<m_Salary;
}

int main()
{
    char name[10],id[19],department[10];
    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;
}

运行结果：

知识点总结：

char指针