1 #include <iostream>
2 using namespace std;
3 class A{
4 public:
5 A &
set(
char);
6 const A &
display();
7 //private:
8 char a1 =
'l';
9 };
10 inline A &A::
set(
char c)
11 {
12 a1 =
c;
13 return *
this;
14 }
15
16 inline
const A &
A::display()
17 {
18 cout << a1 <<
endl;
19 return *
this;
20 }
21
22 int main()
23 {
24 A screen;
25 screen.display().
set(
'a');
//错误,不能修改const对象;
26 screen.a1 =
'z';
27 //.set('l');
28 return 0;
29 }
转载于:https://www.cnblogs.com/liuzhenbo/p/11313545.html
