好的，我正在尝试使用 bootstrap 4 制作动态选项卡，如下所示：https://codepen.io/jek/pen/BoWNRy【不是我写的】
无论如何，我在本地粘贴此代码都不起作用，我显示了 3 个选项卡，但我只能在第一个选项卡中看到文本，我不知道为什么。
这是我的头 [HTML]：
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" integrity="sha384-WskhaSGFgHYWDcbwN70/dfYBj47jz9qbsMId/iRN3ewGhXQFZCSftd1LZCfmhktB" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js" integrity="sha384-smHYKdLADwkXOn1EmN1qk/HfnUcbVRZyYmZ4qpPea6sjB/pTJ0euyQp0Mk8ck+5T" crossorigin="anonymous"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
用这个links and scripts相反你的：
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
我从这里拿来的：https://www.w3schools.com/bootstrap4/default.asp https://www.w3schools.com/bootstrap4/default.asp
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<ul class="nav nav-tabs" role="tablist">
<li class="nav-item">
<a class="nav-link active" href="#profile" role="tab" data-toggle="tab" aria-selected="true">profile</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#buzz" role="tab" data-toggle="tab">buzz</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#references" role="tab" data-toggle="tab">references</a>
</li>
</ul>
<!-- Tab panes -->
<div class="tab-content">
<div role="tabpanel" class="tab-pane active" id="profile">...</div>
<div role="tabpanel" class="tab-pane fade" id="buzz">bbb</div>
<div role="tabpanel" class="tab-pane fade" id="references">ccc</div>
</div>
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