C++中的析构函数

 1 #include <cstdio>
 2 #include <iostream>
 3 
 4 using namespace std;
 5 
 6 class A{
 7     public:
 8         ~A(){
 9             cout<<"~A()"<<endl;
10         }
11 };
12 
13 class B:public A{
14     public:
15         ~B(){
16             cout<<"~B()"<<endl;
17         }
18 };
19 
20 int main(){
21 
22     A* pA = new B();
23     delete pA;
24     cout<<"final"<<endl;
25     
26     return 0;
27 }