2. 计算机
  3. 有如下程序:#nclude ＜iostream＞using namespace std;class Base{ public:void fun1() {cout ＜＜ "Base\n"; }virtual void fun2() {cout ＜＜ "

有如下程序:#nclude ＜iostream＞using namespace std;class Base{ public:void fun1() {cout ＜＜ "Base\n"; }virtual void fun2() {cout ＜＜ "

admin2009-01-15  55
问题 有如下程序:#nclude ＜iostream＞using namespace std;class Base{    public:void fun1() {cout ＜＜ "Base\n"; }virtual void fun2() {cout ＜＜ "Base\n"; }};class Derived: public Base{    public:void fun1() {cout ＜＜ "Derived\n"; }void fun2() {cout ＜＜ "Derived\n"; }}  void f(Base& b) { B. fun1(); B. fun2(); }int main(){Derived obj;f(obj);return 0;}
选项 A、Base    Base
B、Base    Derived
C、Derived    Base
D、Derived    Derived
答案2
解析
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