yii2自定义组件提示

phpdoc.php

<?php

use yii\base\Application;
use yii\BaseYii;

/**
 * @author xialeistudio
 * @date 2019-05-27
 */
class Yii extends BaseYii
{
    /**
     * @var BaseApplication|\yii\web\Application|\yii\console\Application
     */
    public static $app;
}

abstract class BaseApplication extends Application
{

}