chaoyu/app/widget/Slide.php

<?php
namespace app\widget;

use think\facade\View;
use app\model\Slide as WSlide;

class Slide
{
    public function index()
    {
        $data = [
            'slides' => WSlide::getList(),
        ];
        return View::assign($data)->fetch('public/slide');
    }
}