C++程序设计_第5章_特殊函数和成员

             1 #include<iostream>
 2 3usingnamespace std;
 4 5classobject 6{
 7private:
 8int val;
 9public:
10object() :val(0)
11    {
12         cout << "Ddfault constructor for object" << endl;
13    }
14object(int i) :val(i)
15    {
16         cout << "Constructor for object " << val << endl;
17    }
18     ~object()
19    {
20         cout << "Destructor for object" << val << endl;
21    }
22};
2324class container
25{
26private:
27object one;//初始化顺序与对象成员产生的顺序有关28object two;//排在前面的先初始化29int data;
30public:
31     container() :data(0)
32    {
33         cout << "Ddfault constructor for object" << endl;
34    }
35     container(int i, int j, int k);
36     ~container()
37    {
38         cout << "Destructor for object" << data << endl;
39    }
40};
4142 container::container(int i, int j, int k) :two(i), one(j)//与初始化列表顺序无关43{
44     data = k;
45     cout << "Constructor for container " << data << endl;
46}
4748void main()
49{
50     container obj, anObj(5, 6, 10);
5152     system("pause");
53 }