1 載入css

$cssString = ".gray-bg{color:red;}";  
$this->registerCss($cssString); 

2 載入js塊

<?php $this->beginBlock('test') ?>  
    $(function($) {  
     alert('hello');
    });  
<?php $this->endBlock() ?>  
<?php $this->registerJs($this->blocks['test'], \yii\web\View::POS_END); ?>          
 

或者另一種方式

<?php
$this->registerJs(
   '    alert('hello word');   '
);
?>