しゅつりょくを求める
3617 ワード
1 #include <iostream>
2
3 using namespace std;
4
5 class A
6 {
7 public:
8 A() { cout<<"A"<<endl; }
9 ~A() { cout<<"~A"<<endl; }
10 };
11
12 class B:public A
13 {
14 public:
15 B(A &a):_a(a)
16 {
17 cout<<"B"<<endl;
18 }
19 ~B()
20 {
21 cout<<"~B"<<endl;
22 }
23 private:
24 A _a;
25 };
26
27 int main(void)
28 {
29 A a;
30 B b(a);
31 return 0;
32 }