初始化列表 

 1 #include <iostream>
 2 #include <cstring>
 3 using namespace std;
 4 class Person
 5 {
 6 public:
 7     Person()
 8     {
 9         cout << "无参构造" << endl;
10     }
11     Person(int a,int b,int c):A(a),B(b),C(c){}
12     void PrintPerson()
13     {
14         cout << "A:" << A << endl;
15         cout << "B:" << B << endl;
16         cout << "C:" << C << endl;
17     }
18 private:
19     int A;
20     int B;
21     int C;
22 
23 };
24 
25 int main()
26 {
27     Person person(1, 2, 3);
28     person.PrintPerson();
29     return 0;
30 }

 

posted @ 2021-03-13 18:13  丁帅帅dss  阅读(61)  评论(0)    收藏  举报