C++多态与虚函数

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EXAMPLE7_01.H

EXAMPLE7_01.H

#ifndef EXAMPLE7_01_H

#ifndef EXAMPLE7_01_H

#define EXAMPLE7_01_H

#define EXAMPLE7_01_H

#include <iostream.h>

#include <iostream.h>

class Base

class Base

//

//

Base

Base

public:

public:

Base(double dblInitial=0.0){dblBaseTest=dblInitial;}

Base(){}

void setBase(double dblSet){dblBaseTest=dblSet;}

double getBase(){return dblBaseTest;}

class FromBase:public Base

class FromBase:public Base

//

//

{

public:

FromBase(){}

FromBase(double dblInitBase,double dblInitFrom):Base(dblInitBase)

{dblFromTest=dblInitFrom;}

{dblFromTest=dblInitFrom;}

FromBase(){}

FromBase(){}

void setFrom(double setFrom){dblFromTest=setFrom;}

void setFrom(double setFrom){dblFromTest=setFrom;}

double getFrom(){return dblFromTest;}