sports_web/Application/Api/Model/SystemAppupdate.php

<?php
    /**
     * Created by PhpStorm.
     * User: Lenovo
     * Date: 2018/10/30
     * Time: 15:09
     */

    namespace App\Api\Model;

    use \System\Model;
    class SystemAppupdate extends  Model
    {
        protected $table = 'system_appupdate';

    }