谁解释下这段程序

来源：百度知道 编辑：UC知道 时间：2024/06/11 15:16:02
谁解释下这段程序，最好给个注视

还有程序允许结果

#include "windows.h"

class Animal
{
public:
Animal(){}
~Animal(){}

public:

virtual void eat()
{

}
};

class fish : public Animal
{
public:
fish(){}
~fish(){}

public:

void eat()
{

}

void operator << (int nCount)
{
m_count = nCount;
}

private:

int m_count;
};

class Human
{
friend class fish;

public:

Human(){}
~Human(){}

void eat()
{

}
};

class Children : public Animal, public Human
{
public:
Children(){}
~Children(){}

public:
void eat()
{

}
};

int main( int nArgc, char** pArgv )
{
Children* pChild = new Children;
<

#include "windows.h" //自己定义的头文件

class Animal
{
public:
Animal(){} //构造函数
~Animal(){} //析构函数

public: //重复的public可删去

virtual void eat() //虚函数，在子类里面可定义
{

}
};

class fish : public Animal //公有继承Animal类
{
public:
fish(){}
~fish(){}

public:

void eat()
{

}

void operator << (int nCount)
{
m_count = nCount;
}

private:

int m_count;
};

class Human
{
friend class fish; //Human类是fish类的友员类

public:

Human(){}
~Human(){}

void eat()
{

}
};

class Children : public Animal, public Human //公有继承，多继承
{
public:
Children(){}
~Children(){}

public:
void eat()
{

}
};

int main( int nArgc, char*