有如下程序#include <iostream>using namespace std;class base{public:virtual void f1(){cout<
有如下程序#include <iostream>using namespace std;class base{public: virtual void f1() { cout<<"F1Base "; } virtual void f2() { cout<<"F2Base "; }};class derive: public base{ void f1() { cout<<"F1Derive "; } void f2(int x ) { cout<<"F2Derive "; }};int main(){ base obj1, * p; derive obj2; p = & obj2; p -> f1(); p -> f2(); return 0;} 执行后的输出结果是
A.F1Derive F2Base
B.F1Derive F2Derive
C.F1Base F2Base
D.F1Base F2Derive