C++派生类调用基类的虚函数

#include 

using namespace std;

class base {
public:
    virtual void show() {
        cout << "base" << endl;
    }
};

class Derived : public base {
public:
    void show() override {
        cout << "Derived" << endl;
    }
};

int main() {
    Derived* p = new Derived();
    p->show();
    p->base::show(); //添加域名限定符
    return 0;
}