有意思的c++题目

1 #include <iostream>
2 #include<stdlib.h>
3 using namespace std;
4
5 class A
6 {
7 public:
8     int _a;
9     A()
10     {
11         _a = 1;
12     }
13     void print()
14     {
15         printf("%d\n", _a);
16     }
17 };
18
19 class B: public A
20 {
21 public:
22     int _a;
23     B()
24     {
25         _a = 2;
26     }
27 };
28
29 int main()
30 {
31     B b;
32     b.print();
33     printf("%d\n", b._a);
34     return 0;
35 }

1 #include <iostream>
2 #include<stdlib.h>
3 using namespace std;
4
5 class base
6 {
7 private:
8     int m_i;
9     int m_j;
10 public:
11     base(int i):m_j(i),m_i(m_j){}
12     base():m_j(0),m_i(m_j){}
13     int get_i(){return m_i;}
14     int get_j(){return m_j;}
15 };
16
17 int main()
18 {
19     base obj(98);
20     cout<<obj.get_i()<<endl
21         <<obj.get_j()<<endl;
22
23     return 0;
24 }