https://cloud.tencent.com/developer/article/1394302 (opens new window)

#include <stdio.h>
#include <iostream>

using namespace std;


class Base
{
    int i;
public:
    virtual void f1()
    {
        cout<<"Base's f1()"<<endl;
    }
};


int main() {
    A *p = new B;
    p->func1();

    Base *b = new Drive;
    void (Base::*mfp)() = &Base::f1; //这里取到的是Base的函数地址
    printf("address: %p\n", (void*)(b->*mfp));

    typedef void(*Base_f1_t)();
    Base_f1_t(b->*mfp)();  //这里仍然是Base's f1()
}

这种方法可以获取到函数地址，也可以调用函数执行，但是如果函数是虚函数，则会编译错误。