如何在Symfony中重置表单

// 表单类
namespace App\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;

class MyFormType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('field1')
            ->add('field2')
            // 添加其他表单字段
        ;
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults([
            'data_class' => 'App\Entity\MyEntity',
        ]);
    }
}

// 控制器方法
namespace App\Controller;

use App\Form\MyFormType;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;

class MyController extends AbstractController
{
    /**
     * @Route("/form", name="form")
     */
    public function form(Request $request)
    {
        $form = $this->createForm(MyFormType::class);

        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid()) {
            // 处理表单提交逻辑
        }

        return $this->render('form.html.twig', [
            'form' => $form->createView(),
        ]);
    }
}

// 模板文件 form.html.twig
<form method="post">
    {{ form_widget(form) }}
    <button type="submit">提交</button>
    <button type="reset">重置</button>
</form>