设计模式(3)-策略模式(Strategy) (四)

class Price
{
public:
Price();

private:
int _priceCode;

public:
int getPriceCode();
void setPriceCode(int arg);
virtual double getCharge(int daysRented);
};

#endif // PRICE_H

price.cpp

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#include
#include "price.h"

Price::Price()
{
qDebug()<<"construct Price";
_priceCode = 0;
}

int Price::getPriceCode()
{
qDebug()<<_priceCode;
return _priceCode;
}

void Price::setPriceCode(int arg)
{
_priceCode = arg;
}

double Price::getCharge(int daysRented)
{
qDebug()<<"Price::getCharge";
return daysRented;
}
#include
#include "price.h"

Price::Price()
{
qDebug()<<"construct Price";
_priceCode = 0;
}

int Price::getPriceCode()
{
qDebug()<<_priceCode;
return _priceCode;
}

void Price::setPriceCode(int arg)
{
_priceCode = arg;
}

double Price::getCharge(int daysRented)
{
qDebug()<<"Price::getCharge";
return daysRented;
}

regularprice.h

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#ifndef REGULARPRICE_H
#define REGULARPRICE_H

#include "price.h"

class RegularPrice : public Price
{
public:
RegularPrice();

public:
double getCharge(int daysRented);
};

#endif // REGULARPRICE_H
#ifndef REGULARPRICE_H
#define REGULARPRICE_H

#include "price.h"

class RegularPrice : public Price
{
public:
RegularPrice();

public:
double getCharge(int daysRented);
};

#endif // REGULARPRICE_H

regularprice.cpp

[html]
#include
#include "regularprice.h"

RegularPrice::RegularPrice()
{
qDebug()<<"construct RegularPrice";
}

double RegularPrice::getCharge(int daysRented)
{
qDebug()<<"RegularPrice::getCharge";
double result = 2;
if(daysRented>2)
{
result += (daysRented-2)*1.5;
}
return result;
}
#include
#include "regularprice.h"

RegularPrice::RegularPrice()
{
qDebug()<<"construct RegularPrice";
}

double RegularPrice::getCharge(int daysRented)
{
qDebug()<<"RegularPrice::getCharge";
double result = 2;
if(daysRented>2)
{
result += (daysRented-2)*1.5;
}
return result;
}

newreleaseprice.h

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#ifndef NEWRELEASEPRICE_H
#define NEWRELEASEPRICE_H

#include "price.h"

class NewReleasePrice : public Price
{
public:
NewReleasePrice();

public:
double getCharge(int daysRented);
};

#endif // NEWRELEASEPRICE_H
#ifndef NEWRELEASEPRICE_H
#define NEWRELEASEPRICE_H

#include "price.h"

class NewReleasePrice : public Price
{
public:
NewReleasePrice();

public:
double getCharge(int daysRented);
};

#endif // NEWRELEASEPRICE_H

newreleaseprice.cpp

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#include
#include "newreleaseprice.h"

NewReleasePrice::NewReleasePrice()
{
qDebug()<<"construct NewReleasePrice";
}

double NewReleasePrice::getCharge(int daysRented)
{
qDebug()<<"NewReleasePrice::getCharge";
return daysRented*3;;
}
#include
#include "newreleaseprice.h"

NewReleasePrice::NewReleasePrice()
{
qDebug()<<"construct NewReleasePrice";
}

double NewReleasePrice::getCharge(int daysRented)
{
qDebug()<<"NewReleasePrice::getCharge";
return daysRented*3;;
}

discountprice.h

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#ifndef DISCOUNTPRICE_H
#define DISCOUNTPRICE_H

#include "price.h"

class DiscountPrice : public Price
{
public:
DiscountPrice();

public:
double getCharge(int daysRented);
};

#endif // DISCOUNTPRICE_H
#ifndef DISCOUNTPRICE_H
#define DISCOUNTPRICE_H

#include "price.h"

class DiscountPrice : public Price
{
public:
DiscountPrice();

public:
double getCharge(int daysRented);
};

#endif // DISCOUNTPRICE_H

discountprice.cpp

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#include
#include "discountprice.h"

DiscountP