maccms10/application/common/model/Base.php

<?php
namespace app\common\model;
use think\Model;
use think\Db;
use think\Cache;

class Base extends Model {

    //自定义初始化
    protected function initialize()
    {
        //需要调用`Model`的`initialize`方法
        parent::initialize();
        //TODO:自定义的初始化
    }
}