策略模式:定義了一系列算法，并將每一個算法封裝起來，而且使它們還可以相互替換。

策略模式讓算法獨立于使用它的客戶而獨立變化。

代碼如下:

#include <iostream> using namespace std;class WeaponStrategy { public:virtual void useWeapon() = 0; };class Knife :public WeaponStrategy { public:virtual void useWeapon(){cout << "使用匕首" << endl;} };class AK47 :public WeaponStrategy { public:virtual void useWeapon(){cout << "使用AK47" << endl;} };class Character { public:void setWeapon(WeaponStrategy *weapon){this->pWeapon = weapon;}void ThrowWeapon(){this->pWeapon->useWeapon();}WeaponStrategy *pWeapon; };void test01() {Character *character = new Character;WeaponStrategy *knife = new Knife;WeaponStrategy *ak47 = new AK47;character->setWeapon(knife);character->ThrowWeapon();character->setWeapon(ak47);character->ThrowWeapon();delete ak47;delete knife;delete character; }int main() {test01();return 0; }

測試結果:

總結

以上是生活随笔為你收集整理的[设计模式]策略模式的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。