1 //递增运算符的重载
2 #include <iostream>
3 using namespace std;
4 class Myinteger
5 {
6 friend ostream& operator<<(ostream &cout,Myinteger &myint);
7 public:
8
9 Myinteger()
10 {
11 m_Num = 0;
12 }
13 //重载前置++运算符
14 Myinteger& operator++()//返回引用为了对一个数值进行操作
15 {
16 m_Num++;
17 return *this;//返回自身
18 }
19 //重载后置++运算符
20 Myinteger operator++(int)//int代表占位参数，可以区分前置后置递增
21 {
22 //先记录当时的结果
23 Myinteger temp = *this;
24 //后递增
25 m_Num++;
26 //返回记录的结果
27 return temp;
28 }
29 private:
30 int m_Num;
31 };
32 //重载<<运算符
33 ostream& operator<<(ostream &cout,Myinteger &myint)
34 {
35 cout<<myint.m_Num<<endl;
36 return cout;
37 }
38 void test01()
39 {
40 Myinteger myint;
41 cout<<++(++myint)<<endl;
42 cout<<myint<<endl;
43 }
44 void test02()
45 {
46 Myinteger myint;
47 cout<<myint++<<endl;
48 cout<<myint<<endl;
49 }
50 int main()
51 {
52 test01();
53 test02();
54 return 0;
55 }
