php – 创建模块prestashop 1.5

<?php
  if (!defined('_PS_VERSION_'))
?? exit;
?
  class myModule extends Module
?? {
??  public function __construct()
???? {
????  $this->name = 'mymodule';
????  $this->tab = 'Test';
????  $this->version = 1.0;
????  $this->author = 'Firstname Lastname';
????  $this->need_instance = 0;
?
????  parent::__construct();
?
????  $this->displayName = $this->l('My module');
????  $this->description = $this->l('Description of my module.');
???? }
?
?? public function install()
????{
????if (parent::install() == false)
??????return false;
????return true;
????}
   public function uninstall()
    {
    if (!parent::uninstall())

    parent::uninstall();
    }
?? }
?>

但我有一个错误消息

mymodule (erreur de syntaxe dans /modules/mymodule/mymodule.php)
mymodule (classe manquante dans /modules/mymodule/mymodule.php)

你能帮我吗