huahuibao/vendor/dada/api/cityCodeApi.php

<?php
/**
 * 发单api
 */
$dada = Yii::getAlias("@vendor/dada/");
require_once $dada . 'api/baseApi.php';
require_once $dada . 'config/urlConfig.php';

class CityCodeApi extends BaseApi{
    
    public function __construct($params) {
        parent::__construct(UrlConfig::CITY_ORDER_URL, $params);
    }
}