angular-docs-cn/public/docs/_examples/forms/dart/lib/hero_form_component_initial.html

<!-- #docregion -->
<div class="container">
  <h1>Hero Form</h1>
  <form>
    <div class="form-group">
      <label for="name">Name</label>
      <input type="text" class="form-control" required>
    </div>
    <div class="form-group">
      <label for="alterEgo">Alter Ego</label>
      <input type="text" class="form-control">
    </div>
    <button type="submit" class="btn btn-default">Submit</button>
  </form>
</div>