javascript - Bootstrap 3.3.5。折叠的菜单不会展开

Question

我真的花了几个小时在这里和其他地方寻找解决方案，但无论对其他人有帮助，它似乎都没有帮助我。所以我希望移动屏幕的 bootstrap 3.3.5 菜单在点击时折叠和展开。我的代码有问题吗？

<!--navbar starts here-->    
<div class="navbar navbar-inverse navbar-fixed-top" role="navigation">
  <div class="container-fluid">
    <div class="navbar-header">
      <button type="button" class="navbar-toggle" data-toggle="callapse" data-target=".navbar-collapse">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
      <div class="Me navbar-brand">
          <a href="#"><span class="glyphicon glyphicon-home"></span></a>
      </div><!--end Me-->
    </div><!--end navbar-header-->
    <div class="navbar-collapse collapse">
      <ul class="nav navbar-nav navbar-right">
        <li><a href="index.html">Me</a></li>
        <li><a href="#about">About</a></li>
        <li><a href="#work">Work</a></li>
        <li><a href="#contact">Contact</a></li>
        <li><a href="#faq">FAQ</a></li>
      </ul>
    </div><!--end nav-->
  </div><!--end nav container-->
</div> <!--end navbar-->

我像这样加载 jquery 和 bootstrap:

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<!-- Bootstrap core JS -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>

Answer 1

您的代码缺少 CSS 文件，并且您在按钮的数据切换上有错字。

我把JQuery的JS文件更新到最新的v1.12

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">

<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css">

<!--navbar starts here-->    
<div class="navbar navbar-inverse navbar-fixed-top" role="navigation">
  <div class="container-fluid">
    <div class="navbar-header">
      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
      <div class="Me navbar-brand">
          <a href="#"><span class="glyphicon glyphicon-home"></span></a>
      </div><!--end Me-->
    </div><!--end navbar-header-->
    <div class="navbar-collapse collapse">
      <ul class="nav navbar-nav navbar-right">
        <li><a href="index.html">Me</a></li>
        <li><a href="#about">About</a></li>
        <li><a href="#work">Work</a></li>
        <li><a href="#contact">Contact</a></li>
        <li><a href="#faq">FAQ</a></li>
      </ul>
    </div><!--end nav-->
  </div><!--end nav container-->
</div> <!--end navbar-->

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<!-- Bootstrap core JS -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>