程序代码：

#include <iostream>
using namespace std;

class test{
public:
    void print()
    {
        cout<<"health tooth"<<endl;
    }
};

class obj:public test{
public:
    void print()
    {
        cout<<"bad tooth"<<endl;
    }

};

int main()
{
    test* point= &obj;
    (obj*)point->print();
}