有如下程序#include <iostream>using namespace std;class basepublic: 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