TFOJS-1302-题目4：程序设计

考察类的继承，虚函数的用法。

#include <iostream>
#include <cstring>
using namespace std;
class Human{
private:
      string name;
public:
       Human(string);
       void input();
       void virtual print();
};
Human::Human(string n){
   name=n;
}
void Human::print()
{
   cout << name << endl;
}
void Human::input()
{
   cin >> name;
}
class Student :public Human{
   double score;
public:
       Student(string);
       void print();
       void addScore(double);
};
Student::Student(string n):Human(n)
{
    score=0; 
}
void Student::print()
{
     Human::print();
     cout << score << endl;
}
void Student::addScore(double s)
{
     score+=s;
}
class Worker :public Human{
      double money;
public:
       Worker(string);
       void print();
       void addWage(double);
};
Worker::Worker(string n):Human(n)
{
     money=0;
}
void Worker::print()
{
     Human::print();
     cout << money << endl;
}
void Worker::addWage(double m)
{
     money+=m;
}
int main() 
{ 
Student s("student");
Worker w("worker"); 
s.input(); s.print(); 
w.input(); w.print(); 
s.addScore(10);
w.addWage(100);
s.print(); 
w.print(); 
return 0;
}