裝飾器模式
<?php //裝飾器模式-在不改變原有類的結構上,對類的功能那個作補充 //武器基類 abstract class Weapon{ abstract public function descriptions(); abstract public function cost(); } //劍類 class Glave extends Weapon{ public function descriptions(){ return 'Glave'; } public function cost(){ return "100"; } } //匕首類 class Knife extends Weapon{ public function descriptions(){ return __CLASS__; } public function cost(){ return "80"; } } //斧類 class Axe extends Weapon{ public function descriptions(){ return __CLASS__; } public function cost(){ return "200"; } } //屬性類 class Property extends Weapon{ protected $_weapon = null; protected $_price = 0; protected $_descriptions = ''; public function __construct(Weapon $weapon){ $this->_weapon = $weapon; } public function cost(){ return $this->_weapon->cost() + $this->_price; } public function descriptions(){ return $this->_weapon->descriptions().$this->_descriptions; } } //力量屬性 class Strength extends Property{ protected $_price = 30; protected $_descriptions = '+ Strength'; } //敏捷屬性 class Agility extends Property{ protected $_price = 50; protected $_descriptions = '+ Agility'; } //智力屬性 class Intellect extends Property{ protected $_price = 20; protected $_descriptions = '+ Intellect'; } $weapon = new Agility(new Strength(new Strength(new Glave()))); echo $weapon->cost(); echo $weapon->descriptions();