如何使派生类函数在被调用时总是调用相同的基类函数？

#include <iostream>

class Base {
public:
    virtual void func() {
        std::cout << "Base::func() called" << std::endl;
    }
};

class Derived : public Base {
public:
    void func() override {
        std::cout << "Derived::func() called" << std::endl;
    }
};

int main() {
    Base* basePtr = new Derived();
    basePtr->func(); // 输出 "Derived::func() called"

    delete basePtr;
    return 0;
}