带基虚类的构造函数执行顺序

 1 #include <iostream>
 2 
 3 using namespace std;
 4 
 5 class Base
 6 {
 7 public:
 8     Base(int i){cout <<i<<‘ ‘<<"Base"<<endl;}
 9     ~Base(){}
10 };
11 
12 class Base1: virtual public Base
13 {
14 public:
15     Base1(int i, int j=0):Base(j){cout<<i<<‘ ‘<<"Base1"<<endl;}
16     ~Base1(){}
17 };
18 
19 class Base2: virtual public Base
20 {
21 public:
22     Base2(int i,int j=0):Base(j){cout<<i<<‘ ‘<<"Base2"<<endl;}
23     ~Base2(){}
24 };
25 
26 class D:public Base2, public Base1
27 {
28 public:
29     D(int a, int b, int c, int d):mem1(a), mem2(b), Base1(c),Base2(d), Base(a){cout<<b<<‘ ‘<<"D"<<endl;}
30 private:
31     Base2 mem2;
32     Base1 mem1;
33 };
34 
35 int main()
36 {
37     D d(1,2,3,4);
38 
39     system("pause");
40     return 0;
41 }