接口类与接口实战(号码判断抽象类与继承)
实例
<?php
namespace _1009;
abstract class phone
{
protected $number;
public function __construct($number='15021518604'){
$this->number=$number;
}
public function getNumber(){
return $this->number;
}
abstract public function setNumber($num);
}
class Type extends phone{
//构造方法不会继承
public function __construct($number){
parent::__construct($number);
}
public function setNumber($num){
return $this->number=$num;
}
}
$typ=new Type('15021518604');
echo '手机号码：'.$typ->getNumber().'<br>';
$typ->setNumber('021-58583295');
echo '座机号：'.$typ->getNumber().'<br>';运行实例 »
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