php类继承设计商品类手机类图书类

版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/wtfsb/article/details/78534290

设计如下几个类:商品类,有名称,有价钱,库存数,可显示自身信息(名称,价钱,库存)。手机类,是商品的一种,并且有品牌,有产地,可显示自身信息。图书类,是商品的一种,有作者,有出版社, 可显示自身信息。创建一个手机对象,并显示其自身信息;创建一个图书对象,并显示其自身信息;扩展要求:尽量体现封装性就更好了。

<?php

class  goods{
public $name;
public $money;
public $inventory;
public function __construct($name,$money,$inventory){
$this->name=$name;
$this->money=$money;
$this->inventory=$inventory;
}
public function show()
{
echo '名称'.$this->name.'价格'.$this->money.'库存'.$this->inventory;
}
}


class phone extends goods{
public $brand;
public $place;
public function __construct($name,$money,$inventory,$brand,$place){
$this->name=$name;
$this->money=$money;
$this->inventory=$inventory;
$this->brand=$brand;
$this->place=$place;
}
public function show(){
parent::show();
echo '品牌'.$this->brand.'场地'.$this->place;
}
}


class books extends goods{
public  $author;
public $press;
public function __construct($name,$money,$inventory,$author,$press){
$this->name=$name;
$this->money=$money;
$this->inventory=$inventory;
$this->author=$author;
$this->press=$press;
}
public function show(){
parent::show();
echo'作者'.$this->author.'出版社'.$this->press;
}
}


$obj=new phone('手机',750,35,'诺基亚','北京');
$obj->show();
echo'<br>';
$ob=new books('图书',750,35,'一本道','光华');
$ob->show();


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转载自blog.csdn.net/wtfsb/article/details/78534290
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