1 VC6.0
2
3 #include<iostream>
4 using namespace std;
5 class MyClass2
6 {
7 int n;
8 public:
9 MyClass2(int i){n=i;}
10 operator ++(){n++;}//vc6.0支持，vs2012不支持
11 operator++(int){n+=2;}
12 void display()
13 {
14 cout<<"n="<<n<<endl;
15 }
16 };
17 void main()
18 {
19 MyClass2 A(5),B(5);
20 A++;
21 ++B;
22 A.display();
23 B.display();
24 system("pause");
25 }
26
27 VS2012
28
29 #include<iostream>
30 using namespace std;
31 class MyClass2
32 {
33 int n;
34 public:
35 MyClass2(int i){n=i;}
36 const int operator ++(){n++;return n;}
37 const int operator++(int){n+=2;return n;}
38 void display()
39 {
40 cout<<"n="<<n<<endl;
41 }
42 };
43 void main()
44 {
45 MyClass2 A(5),B(5);
46 A++;
47 ++B;
48 A.display();
49 B.display();
50 system("pause");
51 }
