005-对象——对象的 final const

最新推荐文章于 2025-09-09 18:53:59 发布

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最新推荐文章于 2025-09-09 18:53:59 发布

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文章标签： php

本文通过具体的PHP代码示例介绍了面向对象编程的概念，包括类的继承、构造函数、方法覆盖及常量使用等核心特性，并展示了如何利用这些特性实现手机品牌开机动画与财务工资计算的具体业务场景。

<?php

/**
 *
 */

/*class shouji
{
    public $pinpai;

    final function chongdian()
    {  //final  最终的
        return $this->pinpai."手机通过10v电压充电";
    }
    function kaijidonghua(){
        return "<<< 开机动画 >>>";
    }
}

class moto extends shouji
{
    function __construct()
    {
        $this->pinpai = "摩托罗拉";
    }
    function kaijidonghua(){
        return "摩托罗拉的商标";
    }
}

class sanxing extends shouji
{
    function __construct()
    {
        $this->pinpai = "三星";
    }
    function kaijidonghua(){
        return "三星的商标";
    }
}

//$moto = new moto();
//echo $moto->chongdian();

class ren
{
    private $mingzi;

    function __construct($ming)
    {
        $this->mingzi = $ming;
    }

    function yongshouji($shouji)
    {
        $shouji = new $shouji();
        echo $this->mingzi."的手机开机动画是:".$shouji->kaijidonghua()."<br/>";
        echo $this->mingzi . "在用" . $shouji->pinpai . "   " . $shouji->chongdian();
    }
}

$lisi = new ren("李四");
$lisi->yongshouji("moto");*/


/*final class bangong
{
    private $diannao;//电脑
    private $chuanzhenji;//传真机
    private $saomiaoyi;//扫描仪
    function __construct($diannao,$chuanzhenji,$saomiaoyi)
    {
        $this->diannao=$diannao;
        $this->chuanzhenji=$chuanzhenji;
        $this->saomiaoyi=$saomiaoyi;
    }

    function sheji()
    {
        return $this->diannao . "来设计";
    }

    function saomiao()
    {
        return $this->saomiaoyi . "来扫描";
    }
}
$bangong=new bangong('戴尔',"三星传真机","爱克发");
echo $bangong->sheji();
echo "<br/>================<br/>";
echo $bangong->saomiao();
echo "<br/>================<br/>";*/

//const
/*define('webname','蓝天网');
echo webname;*/

define('WEBNAME',"蓝天");
class caiwu
{
    const suilv = 0.05;  //类常量：

    function __construct()
    {
        echo WEBNAME;
    }

    function kaigongzi($xingming, $gongzi)
    {
        $gongzi = $gongzi - $gongzi * self::suilv;
        return $xingming . "的工资是" . $gongzi . "元";
    }
}

/*员工类*/

class yuangong
{
    private $xingming;//姓名
    private $gongzisu;//工资数

    function __construct($xingming, $gongzisu)
    {
        $this->xingming = $xingming;
        $this->gongzisu = $gongzisu;
    }

    function kaizi()
    {
        $caiwu = new caiwu();
        return $caiwu->kaigongzi($this->xingming, $this->gongzisu);
    }
}

$lisi = new yuangong('李四', "6000");
echo $lisi->kaizi();