第十周 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

<span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">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。）</span>

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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,floatsalary); 

   void Show2(); 

   ~CEmployee(); 

}; 

int main() 

{ 

   char name[10],id[19],department[10]; 

   int sex,age; 

   float salary; 

   cout<<"input employee'sname,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; 

} 

[参考解答]

#include<iostream>#include<string.h>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();    ~CEmployee();};void CEmployee::Show2(){    Show1();    cout<<"Department:"<<m_szDepartment<<endl<<"Salary:"<<m_Salary<<endl;}CEmployee::~CEmployee(){    delete[]m_szDepartment;}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)];    strcpy(m_szDepartment,department);    m_Salary=salary;}void CPerson::Show1(){    cout<<"Name:"<<m_szName<<endl<<"ID:"<<m_szId<<endl        <<"Sex:"<<m_nSex<<endl<<"Age:"<<m_nAge<<endl;}CPerson::~CPerson(){    delete[]m_szId;    delete[]m_szName;}CPerson::CPerson(char* name,char* id,int sex,int age){    m_szName=new char[strlen(name)];    m_szId=new char[strlen(id)];    strcpy(m_szName,name);    strcpy(m_szId,id);    m_nSex=sex;    m_nAge=age;}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;}

测试结果如下：