如何从kartik FileInput yii2中清除选定的文件

use kartik\file\FileInput;

echo FileInput::widget([
    'name' => 'file',
    'options' => ['multiple' => true],
    'pluginOptions' => [
        'showUpload' => false,
        'showRemove' => true,
    ]
]);

use yii\web\UploadedFile;

public function actionUpload()
{
    $model = new YourModel();
    $model->file = UploadedFile::getInstance($model, 'file');
    
    if ($model->file && $model->validate()) {
        // 处理文件上传逻辑
        $model->file->saveAs('path/to/save/file');
    }
    
    // 其他逻辑
    
    return $this->render('your-view', ['model' => $model]);
}

public function actionClearFile()
{
    // 处理清除文件的逻辑
    // 例如，删除已上传的文件
    
    // 其他逻辑
    
    return $this->redirect(['your-view']);
}

use yii\helpers\Html;

echo Html::a('清除', ['clear-file'], ['class' => 'btn btn-danger']);