007：返回什么才好呢 

 1 #include <iostream>
 2 using namespace std;
 3 class A {
 4 public:
 5     int val;
 6     A(int n = 123):val(n){}
 7     A& GetObj(){return *this;}
 8 };
 9 int main()
10 {
11     int m,n;
12     A a;
13     cout << a.val << endl;
14     while(cin >> m >> n) {
15         a.GetObj() = m;
16         cout << a.val << endl;
17         a.GetObj() = A(n);
18         cout << a.val<< endl;
19     }
20     return 0;
21 }

 

posted @ 2022-08-19 15:04  balabalahhh  阅读(36)  评论(0)    收藏  举报