/***********Strategy.h******************/
// ***************************************************************
// Strategy version: 1.0 · date: 09/01/2008
// -------------------------------------------------------------
// -------------------------------------------------------------
// Copyright (C) 2008 - All Rights Reserved
// ***************************************************************
#ifndef STRATEGY_H_
#define STRATEGY_H_
class WeaponBehavior;
class Character
{
public:
Character();
Character(WeaponBehavior* pWeapon);
~Character();
void fight();
void SetWeapon(WeaponBehavior* w);
private:
WeaponBehavior* m_weapor;
};
class Queue : public Character
{
public:
Queue();
~Queue();
};
class King : public Character
{
public:
King();
~King();
};
class WeaponBehavior
{
public:
WeaponBehavior();
~WeaponBehavior();
virtual void useWeapon() = 0;
};
class KnifeBehvior : public WeaponBehavior
{
public:
KnifeBehvior();
~KnifeBehvior();
virtual void useWeapon();
};
class SwordBehavior : public WeaponBehavior
{
public:
SwordBehavior();
~SwordBehavior();
virtual void useWeapon();
};
#endif
/************Strategy.cpp********************/
#include "Strategy.h"
#include <iostream>
using namespace std;
Character::Character():m_weapor(NULL)
{
}
Character::Character(WeaponBehavior* pWeapon)
{
m_weapor = pWeapon;
}
Character::~Character()
{
if (m_weapor != NULL)
{
delete m_weapor;
m_weapor = NULL;
}
}
void Character::fight()
{
m_weapor->useWeapon();
}
void Character::SetWeapon(WeaponBehavior* w)
{
m_weapor = w;
}
Queue::Queue():Character(new KnifeBehvior())
{
}
Queue::~Queue()
{
}
King::King():Character(new SwordBehavior())
{
}
King::~King()
{
}
WeaponBehavior::WeaponBehavior()
{
}
WeaponBehavior::~WeaponBehavior()
{
}
KnifeBehvior::KnifeBehvior()
{
}
KnifeBehvior::~KnifeBehvior()
{
}
void KnifeBehvior::useWeapon()
{
cout<<"Fight use Knife!"<<endl;
}
SwordBehavior::SwordBehavior()
{
}
SwordBehavior::~SwordBehavior()
{
}
void SwordBehavior::useWeapon()
{
cout<<"Fight use Sword!"<<endl;
}
/*************Main.cpp*******************/
#include "Strategy.h"
void main()
{
Character* character = new King();
character->fight();
WeaponBehavior* pWeapon = new KnifeBehvior();
character->SetWeapon(pWeapon);
character->fight();
delete character;
character = 0;
}
上面代码在执行时不会出现问题，但是我感觉是不是得使用delete pWeapon;释放pWeapon，不过加上的话执行是弹出错误，请大家帮忙分析一下，上面代码是否存在内存泄漏，谢谢！
