【简答题】若有以下程序: include <iostream> using namespace std; class Base { public: void who(){cout<<' Base'<<end1:} }; class Derived1: public Base { public: void who(){ cout<<'Derived'<<end1;} }; int main() { Base ...
【简答题】若有以下程序: include <iostream> using namespace std; class Base { public: void who() { cout<<'class Base'<<end1; } }; class Derivedl : public Base { public: void who() { cout<<'class Derivedl'<<end1; } }; ...