在目标c中将基类指针指向派生类

#include<iostream>

class Base {
public:
    void print() {
        std::cout << "Base class print function"<< std::endl;
    }
};

class Derived : public Base {
public:
    void print() {
        std::cout << "Derived class print function"<< std::endl;
    }
};

int main() {
    Base* base_ptr = new Derived(); // 将基类指针指向派生类对象
    base_ptr->print(); // 输出 "Base class print function"
    delete base_ptr;
    return 0;
}