题目内容:
有如下程序: #inClude<iostream> using namespaCe std; Class Base{publiC: Base(int x=0){Cout<<x;} }; Class Derived:publiC Base{ publiC: Derived(int X=0){Cout<<x;} private: Base val; }; int main() {Derived d(1);return 0; }执行这个程序的输出结果是()。 A.0
B.1
C.01
D.001
参考答案:
答案解析: