PHP简单装饰器模式实现与用法示例


            本文实例讲述了PHP简单装饰器模式实现与用法。分享给大家供大家参考，具体如下：





<?php

//装饰器模式-在不改变原有类的结构上，对类的功能那个作补充

//武器基类

abstract class Weapon{

  abstract public function descriptions();

  abstract public function cost();

}

//剑类

class Glave extends Weapon{

  public function descriptions(){

    return 'Glave';

  }

  public function cost(){

    return "100";

  }

}

//匕首类

class Knife extends Weapon{

  public function descriptions(){

    return __CLASS__;

  }

  public function cost(){

    return "80";

  }

}

//斧类

class Axe extends Weapon{

  public function descriptions(){

    return __CLASS__;

  }

  public function cost(){

    return "200";

  }

}

//属性类

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;

  }

}

//力量属性

class Strength extends Property{

  protected $_price = 30;

  protected $_descriptions = '+ Strength';

}

//敏捷属性

class Agility extends Property{

  protected $_price = 50;

  protected $_descriptions = '+ Agility';

}

//智力属性

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();







更多关于PHP相关内容感兴趣的读者可查看本站专题：《php面向对象程序设计入门教程》、《PHP基本语法入门教程》、《PHP网络编程技巧总结》、《PHP数组(Array)操作技巧大全》、《php字符串(string)用法总结》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》

希望本文所述对大家PHP程序设计有所帮助。