根據描述，按照面向對象的方式來定義類或者接口：

1 交通警察執法攔截闖紅燈的奧迪汽車

2 刑警於今日7月17日淩晨抓捕了江蘇常熟縱火案嫌疑犯

3 青蛙一般在田間捕捉害蟲；蜻蜓能飛，一般在空中捕捉害蟲；啄木鳥也能飛，一般在樹上捕捉害蟲

/**
 * 青蛙一般在田間捕捉害蟲；蜻蜓能飛，一般在空中捕捉害蟲；啄木鳥也能飛，一般在樹上捕捉害蟲；
 */
abstract class DongWu{
    protected $mingZi;
    protected $diDian;
    public function __construct($mingZi, $diDian){
        $this->diDian = $diDian;
        $this->mingZi = $mingZi;
    }
    public function zhuoHaiChong(){
        echo $this->mingZi.$this->diDian.‘捕捉害蟲‘;
    }
}
interface Fly{
    public function fly();
}
class QingWa extends DongWu{
//    public function zhuoHaiChong(){
//        echo $this->mingZi.$this->diDian.‘捕捉害蟲‘;
//    }
}
class QingTing extends DongWu implements Fly {
    public function fly(){
        return $this->mingZi.‘能飛，‘;
    }
    public function zhuoHaiChong(){
        echo $this->fly();
        parent::zhuoHaiChong();
    }
}
class ZhuoMuNiao extends DongWu implements Fly{
    public function fly(){
        return $this->mingZi.‘能飛，‘;
    }
    public function zhuoHaiChong(){
        echo $this->fly();
        parent::zhuoHaiChong();
    }
}

$qw = new QingWa(‘青蛙‘, ‘在田間‘);
$qw->zhuoHaiChong();
echo ‘<br><br>‘;
$qt = new QingTing(‘蜻蜓‘, ‘在空中‘);
$qt->zhuoHaiChong();
echo ‘<br><br>‘;
$zmn = new QingTing(‘啄木鳥‘, ‘在樹上‘);
$zmn->zhuoHaiChong();

PHP面向對象練習