Question

c++题目，有几个错不会改 #include<iostream> #include<string>

c++题目，有几个错不会改
#include<iostream>
#include<string>
using namespace std;

class CPerson
{
public:
CPerson(int a,string*ad,string n);
virtual ~CPerson();
virtual void show();
protected:
int m_age;
string *m_address;
string m_name;
};
class CStudent:public CPerson
{
public:
CStudent();
~CStudent();
void show();
protected:
string m_grade;
};

CPerson::CPerson(int a,string*ad,string n)
{
m_age=a;
m_address=ad;
strcpy(m_name,n);
}
CPerson::~CPerson()
{
cout<<"~CPerson!"<<endl;
}
void CPerson::show()
{
cout<<"姓名："<<m_name<<" 年龄："<<m_age<<" 住址："<<m_address<<endl;
}
CStudent::CStudent(int a,string *ad,string n,string g):CPerson(a,ad,n)
{
strcpy(m_grade,g);
}
CStudent::~CStudent()
{
cout<<"~CStudent!"<<endl;
}
void CStudent::show()
{
cout<<"姓名："<<m_name<<" 年龄："<<m_age<<" 年级："<<m_grade<<" 住址："<<m_address<<endl;
}

int main()
{
string s="dizhi";
string *p=s;
CPerson *poCP=new CStudent(20,p,"zhangsan","dayi");
if(NULL==poCP)
{
exit(0);
}
poCP->show();
delete poCP;
cout<<"通过delete析构new运算符创建的对象结束！\n"<<endl;

CStudent oCSt(20,p,"zhangsan","dayi");
oCSt.show();

return 0;
}

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Answer 1

什么错。