类成员函数指针的使用

#include <iostream> class A { public: A(){}; virtual ~A(){}; }; class B : public A { public: B(){}; ~B(){}; int Fb(int a){ return a*a;} }; typedef int (A::*Myfunction)(int); int main() { B* pB = new B; Myfunction pf = (Myfunction)(&B::Fb); int retValue = (pB->*pf)(3); std::cout<<retValue; std::cin>>retValue; return 1; }