如何构建自定义drupal 8模块表单

name: Custom Form
type: module
description: Provides a custom form for Drupal 8.
core_version_requirement: ^8 || ^9
package: Custom
dependencies:
  - drupal:core

custom_form.form:
  path: '/custom-form'
  defaults:
    _form: '\Drupal\custom_form\Form\CustomForm'
    _title: 'Custom Form'
  requirements:
    _permission: 'access content'

<?php

namespace Drupal\custom_form\Form;

use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;

class CustomForm extends FormBase {

  public function getFormId() {
    return 'custom_form';
  }

  public function buildForm(array $form, FormStateInterface $form_state) {
    $form['name'] = [
      '#type' => 'textfield',
      '#title' => $this->t('Name'),
      '#required' => TRUE,
    ];

    $form['email'] = [
      '#type' => 'email',
      '#title' => $this->t('Email'),
      '#required' => TRUE,
    ];

    $form['submit'] = [
      '#type' => 'submit',
      '#value' => $this->t('Submit'),
    ];

    return $form;
  }

  public function submitForm(array &$form, FormStateInterface $form_state) {
    // 处理表单提交的数据
    $name = $form_state->getValue('name');
    $email = $form_state->getValue('email');

    // 在这里可以进行数据处理、保存等操作

    // 提示用户提交成功
    drupal_set_message($this->t('Form submitted successfully.'));
  }

}

drush cr