保存数据

#include <iostream>
#include <string>
#include <fstream>
#include <ostream>
#include <string.h>
using namespace std;
ofstream BER1;
class A{
    
public:
	~A()
	{
    
		cout << "A" << endl;
		BER1 << "A" << endl;
	}
};
class B{
    
public:
	~B()
	{
    
		cout << "B" << endl;
		BER1 << "B" << endl;
	}
};
class C{
    
public:
	~C()
	{
    
		cout << "C" << endl;
		BER1 << "C" << endl;
	}
};
class D{
    
public:
	~D()
	{
    
		cout << "D" << endl;
		BER1 << "D" << endl;
	}
};
C c;
void main()
{
    
	BER1.open("BER1.txt");
	A* pa = new A();
	B b;
	static D d;
	delete pa;
}