7-8（虚基类的使用）

 1 #include<iostream>
 2 using namespace std;
 3 
 4 class Base0
 5 {
 6 public:
 7     int var0;
 8     void fun0()
 9     {
10         cout<<"Member of Base0"<<endl;
11     }
12 };
13 
14 class Base1:virtual public Base0
15 {
16 public:
17     int var1;
18 };
19 
20 class Base2:virtual public Base0
21 {
22 public:
23     int var2;
24 };
25 
26 class Derived:public Base1,public Base2
27 {
28 public:
29     int var;
30     void fun()
31     {
32         cout<<"Member fo Derived"<<endl;
33     }
34 };
35 
36 int main()
37 {
38     Derived d;
39     d.var0=2;
40     d.fun0();
41     return 0;
42 }