请阅读下述代码，写出程序执行的结果#include <iostream> using namespace std; class C

请阅读下述代码，写出程序执行的结果

#include <iostream>

using namespace std;

class CBase

{

public:

virtual void print()

{

cout$amp; }

void DoPrint()

{

print();

}

};

class CChild1: public CBase

{

public:

virtual void print()

{

cout$amp; }

};

class CChild2: pu

{

public:

virtual void pri

{

cout$amp; }

};

void DoPrint(CB

{

base->DoPrint

}

void main()

{

CBase* base =

CChild1* child

CChild2* child

DoPrint(child1

DoPrint(child2

DoPrint(base);

delete base;

base = child1;

base->print();

delete child1;

delete child2;

}

请帮忙给出正确答案和分析，谢谢！