【笔试题】用PHP写一个微波炉

在网上看到一个笔试题，感觉挺有意思的，然后我尝试着解一解，欢迎各位大佬指正。

代码题（用 OOP 的思想编码，注意代码规范）写出你的思路，最好有代码

用 php 写一个微波炉，注意物品正加热时不能开门，带皮带壳食物不能被加热。

感谢大佬们的建议，更进一步理解了 OOP，现更新第二版。

第二版

<?php/** * Created by PhpStorm. * User: arun * Date: 2019-04-30 * Time: 16:10 *//** * 厨房用具 * Interface kitchenWare */interface kitchenWare {    /**     * 加工食材     * @param Food $food     * @return mixed     */    public function process(Food $food);    /**     * 是否正在加工     * @return mixed     */    public function hasProcess();}/** * 微波炉 * Class MicrowaveOven */class MicrowaveOven implements kitchenWare{    /**     * 是否加热中     * @var bool     */    protected $is_heat = false;    /**     * @param Food $food     * @return mixed|string     */    public function process(Food $food)    {        if ($this->hasProcess()) {            return '已有食物在加热，无法打开';        } else {            if ($food->hasShuck() || $food->hasPericarp()) {                return '食物带壳或者带皮，无法进行加热';            } else {                $this->is_heat = true;                return '食物加热中，加热完成即可取出';            }        }    }    /**     * 是否正在加工     * @return bool|mixed     */    public function hasProcess()    {        return $this->is_heat;    }}/** * 烤箱 * Class Oven */class Oven implements kitchenWare{    /**     * 是否烧烤中     * @var bool     */    protected $is_heat = false;    /**     * @param Food $food     * @return mixed|string     */    public function process(Food $food)    {        if ($this->is_heat) {            return '已有食物在烤制，无法打开';        } else {            if ($food->hasShuck()) {                return '食物带壳，无法进行烤制';            } else {                $this->is_heat = true;                return '食物烤制中，完成即可取出';            }        }    }    /**     * 是否正在加工     * @return bool|mixed     */    public function hasProcess()    {        return $this->is_heat;    }}/** * 食物 * Class Food */class Food{    /**     * 是否带壳     * @var bool     */    protected $is_shuck = false;    /**     * 是否带皮     * @var bool     */    protected $is_pericarp = false;    /**     * Food constructor.     * @param bool $is_shuck     * @param bool $is_pericarp     */    public function __construct(bool $is_shuck, bool $is_pericarp)    {        $this->is_shuck = $is_shuck;        $this->is_pericarp = $is_pericarp;    }    /**     * 判断是否带壳     * @return bool     */    public function hasShuck()    {        return $this->is_shuck;    }    /**     * 判断是否带皮     * @return bool     */    public function hasPericarp()    {        return $this->is_pericarp;    }}/** * 烹饪 * Class Cooking */class Cooking{    /**     * @var kitchenWare     */    protected $kitchenWare;    /**     * Cook constructor.     * @param kitchenWare $kitchenWare     */    public function __construct(kitchenWare $kitchenWare)    {        $this->kitchenWare = $kitchenWare;    }    /**     * 烹饪食物     * @param Food $food     * @return mixed     */    public function cooking(Food $food)    {        $data = $this->kitchenWare->process($food);        return $data;    }}/** * 微波炉加热 * @return mixed */function test(){    $cooking = new Cooking(new MicrowaveOven());    $food = new Food(false, false);    $result = $cooking->cooking($food);    $result2 = $cooking->cooking($food);    var_dump($result, $result2);}/** * 烤箱烤制 * @return mixed */function test2(){    $cooking = new Cooking(new Oven());    $food = new Food(false, true);    $result =  $cooking->cooking($food);    $result2 =  $cooking->cooking($food);    var_dump($result, $result2);}test();test2();

第一版

<?php/** * Created by PhpStorm. * User: arun * Date: 2019-04-30 * Time: 16:10 *//** * 厨房用具 * Interface kitchenWare */interface kitchenWare {    /**     * 加工食材     *     * @param $food     * @return mixed     */    public function process($food);}/** * 微波炉 * Class MicrowaveOven */class MicrowaveOven implements kitchenWare{    /**     * 是否加热中     * @var bool     */    protected $is_heat = false;    public function process($food)    {        if ($this->is_heat) {            return '已有食物在加热，无法打开';        } else {            if ($food['is_shuck'] || $food['is_pericarp']) {                return '食物带壳或者带皮，无法进行加热';            } else {                $this ->is_heat = true;                return '食物加热中，加热完成即可取出';            }        }    }}/** * 烤箱 * Class Oven */class Oven implements kitchenWare{    /**     * 是否烧烤中     * @var bool     */    protected $is_heat = false;    public function process($food)    {        if ($this->is_heat) {            return '已有食物在烤制，无法打开';        } else {            if ($food['is_shuck']) {                return '食物带壳，无法进行烤制';            } else {                $this ->is_heat = true;                return '食物烤制中，完成即可取出';            }        }    }}/** * 食物 * Class Food */class Food{    /**     * 是否带壳     * @var bool     */    protected $is_shuck = false;    /**     * 是否带皮     * @var bool     */    protected $is_pericarp = false;    /**     * Food constructor.     * @param bool $is_shuck     * @param bool $is_pericarp     */    public function __construct(bool $is_shuck, bool $is_pericarp)    {        $this->is_shuck = $is_shuck;        $this->is_pericarp = $is_pericarp;    }    public function getFood()    {        return [            'is_shuck' => $this->is_shuck,            'is_pericarp' => $this->is_pericarp,        ];    }}/** * 烹饪 * Class Cooking */class Cooking{    /**     * @var kitchenWare     */    protected $kitchenWare;    /**     * Cook constructor.     * @param kitchenWare $kitchenWare     */    public function __construct(kitchenWare $kitchenWare)    {        $this->kitchenWare = $kitchenWare;    }    /**     * 烹饪食物     * @param $food     * @return mixed     */    public function cooking($food)    {        $data = $this->kitchenWare->process($food);        return $data;    }}/** * 微波炉加热 * @return mixed */function test(){    $cooking = new Cooking(new MicrowaveOven());    $food = new Food(false, false);    $result = $cooking->cooking($food->getFood());    $result2 = $cooking->cooking($food->getFood());    var_dump($result, $result2);}/** * 烤箱烤制 * @return mixed */function test2(){    $cooking = new Cooking(new Oven());    $food = new Food(false, true);    $result =  $cooking->cooking($food->getFood());    $result2 =  $cooking->cooking($food->getFood());    var_dump($result, $result2);}test();test2();

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