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#include <iostream>
#include <string>
using namespace std;
class Student
{
public:
void get_value()
{cin>>num>>name>>sex;}
void display()
{
cout < <"num:" < <num < <endl;
cout < <"name:" < <name < <endl;
cout < <"sex:" < <sex < <endl;
}
private:
int num;
string name;
char sex;
};
class Student1:public Student
{
public:
void display_1(int &age,string &addr)
{
cout < <" age:" < <age < <endl;
cout < <"address:" < <addr < <endl;
}
int age;
string addr;
};
int main()
{
Student1 stud;
stud.get_value();
stud.display();
stud.display_1(10,"haha");
return 0;
}

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ÇëÎÊ Èç¹ûÎÒ·ÇÒªstud.display_1(10,"haha");
void display_1(int &age,string &addr)
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