controller\hello

<?php

    namespace app\controllers;

    use yii\web\Controller;

    class helloController extends Controller

    {

        public function actionIndex(){

            return $this->renderPartial("index");

        }

    }

?>

view\hello\about.php

    hello about!

    <?=$v_hello_str;?>

view\hello\index.php

    hello index!

    <?php echo $this->render("about",array("v_hello_str"=>"hello world!"));?><!--视图组件 $this -->