CSDN 夏令营课程 项目分析

#include <iostream.h>
//using namespace std;

class BASE
{
char c;
public:
BASE(char n):c(n){}
virtual~BASE()
{cout<<c;}
};
class DERIVED:public BASE
{
char c;
public:
DERIVED(char n):BASE(n+1),c(n){}
~DERIVED(){cout<<c;}
};
int main()
{
DERIVED('X');
cout<<endl;
return 0;
}