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Bootstrap 按鈕下拉菜單

2022-03-04 16:21 更新

Bootstrap 按鈕下拉菜單

本章將講解如何使用 Bootstrap class 向按鈕添加下拉菜單。如需向按鈕添加下拉菜單，只需要簡(jiǎn)單地在一個(gè) .btn-group 中放置按鈕和下拉菜單即可。您也可以使用 <span class="caret"></span> 來指示按鈕作為下拉菜單。

下面的實(shí)例演示了一個(gè)基本的簡(jiǎn)單的按鈕下拉菜單：

<!DOCTYPE html>
<html>
<head>
   <title>Bootstrap 實(shí)例 - 基本的按鈕下拉菜單</title>
   <link  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="stylesheet">
   <script src="http://cdn.bootcss.com/jquery/2.1.1/jquery.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script>
   <script src="http://cdn.bootcss.com/bootstrap/3.3.6/js/bootstrap.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script>
</head>
<body>

<div class="btn-group">
   <button type="button" class="btn btn-default dropdown-toggle"        data-toggle="dropdown">
      默認(rèn) <span class="caret"></span>
   </button>
   <ul class="dropdown-menu" role="menu">
      <li><a href="#">功能</a></li>
      <li><a href="#">另一個(gè)功能</a></li>
      <li><a href="#">其他</a></li>
      <li class="divider"></li>
      <li><a href="#">分離的鏈接</a></li>
   </ul>
</div>
<div class="btn-group">
   <button type="button" class="btn btn-primary dropdown-toggle"        data-toggle="dropdown">
      原始 <span class="caret"></span>
   </button>
   <ul class="dropdown-menu" role="menu">
      <li><a href="#">功能</a></li>
      <li><a href="#">另一個(gè)功能</a></li>
      <li><a href="#">其他</a></li>
      <li class="divider"></li>
      <li><a href="#">分離的鏈接</a></li>
   </ul>
</div>

</body>
</html>

結(jié)果如下所示：

分割的按鈕下拉菜單

分割的按鈕下拉菜單使用與下拉菜單按鈕大致相同的樣式，但是對(duì)下拉菜單添加了原始的功能。分割按鈕的左邊是原始的功能，右邊是顯示下拉菜單的切換。

<!DOCTYPE html>
<html>
<head>
   <title>Bootstrap 實(shí)例 - 分割的按鈕下拉菜單</title>
   <link  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="stylesheet">
   <script src="http://cdn.bootcss.com/jquery/2.1.1/jquery.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script>
   <script src="http://cdn.bootcss.com/bootstrap/3.3.6/js/bootstrap.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script>
</head>
<body>

<div class="btn-group">
   <button type="button" class="btn btn-default">默認(rèn)</button>
   <button type="button" class="btn btn-default dropdown-toggle"        data-toggle="dropdown">
      <span class="caret"></span>
      <span class="sr-only">切換下拉菜單</span>
   </button>
   <ul class="dropdown-menu" role="menu">
      <li><a href="#">功能</a></li>
      <li><a href="#">另一個(gè)功能</a></li>
      <li><a href="#">其他</a></li>
      <li class="divider"></li>
      <li><a href="#">分離的鏈接</a></li>
   </ul>
</div>
<div class="btn-group">
   <button type="button" class="btn btn-primary">原始</button>
   <button type="button" class="btn btn-primary dropdown-toggle"        data-toggle="dropdown">
      <span class="caret"></span>
      <span class="sr-only">切換下拉菜單</span>
   </button>
   <ul class="dropdown-menu" role="menu">
      <li><a href="#">功能</a></li>
      <li><a href="#">另一個(gè)功能</a></li>
      <li><a href="#">其他</a></li>
      <li class="divider"></li>
      <li><a href="#">分離的鏈接</a></li>
   </ul>
</div>

</body>
</html>

結(jié)果如下所示：

按鈕下拉菜單的大小

您可以使用帶有各種大小按鈕的下拉菜單：.btn-large、.btn-sm 或 .btn-xs。

<!DOCTYPE html>
<html>
<head>
   <title>Bootstrap 實(shí)例 - 按鈕下拉菜單的大小</title>
   <link  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="stylesheet">
   <script src="http://cdn.bootcss.com/jquery/2.1.1/jquery.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script>
   <script src="http://cdn.bootcss.com/bootstrap/3.3.6/js/bootstrap.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script>
</head>
<body>

<div class="btn-group">
   <button type="button" class="btn btn-default dropdown-toggle btn-lg"        data-toggle="dropdown">
      默認(rèn) <span class="caret"></span>
   </button>
   <ul class="dropdown-menu" role="menu">
      <li><a href="#">功能</a></li>
      <li><a href="#">另一個(gè)功能</a></li>
      <li><a href="#">其他</a></li>
      <li class="divider"></li>
      <li><a href="#">分離的鏈接</a></li>
   </ul>
</div>
<div class="btn-group">
   <button type="button" class="btn btn-primary dropdown-toggle btn-sm"        data-toggle="dropdown">
      原始 <span class="caret"></span>
   </button>
   <ul class="dropdown-menu" role="menu">
      <li><a href="#">功能</a></li>
      <li><a href="#">另一個(gè)功能</a></li>
      <li><a href="#">其他</a></li>
      <li class="divider"></li>
      <li><a href="#">分離的鏈接</a></li>
   </ul>
</div>
<div class="btn-group">
   <button type="button" class="btn btn-success dropdown-toggle btn-xs"        data-toggle="dropdown">
      成功 <span class="caret"></span>
   </button>
   <ul class="dropdown-menu" role="menu">
      <li><a href="#">功能</a></li>
      <li><a href="#">另一個(gè)功能</a></li>
      <li><a href="#">其他</a></li>
      <li class="divider"></li>
      <li><a href="#">分離的鏈接</a></li>
   </ul>
</div>

</body>
</html>

結(jié)果如下所示：

按鈕上拉菜單

菜單也可以往上拉伸的，只需要簡(jiǎn)單地向父 .btn-group 容器添加 .dropup 即可。

<!DOCTYPE html>
<html>
<head>
   <title>Bootstrap 實(shí)例 - 按鈕上拉菜單</title>
   <link  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="stylesheet">
   <script src="http://cdn.bootcss.com/jquery/2.1.1/jquery.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script>
   <script src="http://cdn.bootcss.com/bootstrap/3.3.6/js/bootstrap.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script>
</head>
<body>

<div class="row" style="margin-left:50px; margin-top:200px">
   <div class="btn-group dropup">
      <button type="button" class="btn btn-default dropdown-toggle"           data-toggle="dropdown">
         默認(rèn) <span class="caret"></span>
      </button>
      <ul class="dropdown-menu" role="menu">
         <li><a href="#">功能</a></li>
         <li><a href="#">另一個(gè)功能</a></li>
         <li><a href="#">其他</a></li>
         <li class="divider"></li>
         <li><a href="#">分離的鏈接</a></li>
      </ul>
   </div>
   <div class="btn-group dropup">
      <button type="button" class="btn btn-primary dropdown-toggle"           data-toggle="dropdown">
         原始 <span class="caret"></span>
      </button>
      <ul class="dropdown-menu" role="menu">
         <li><a href="#">功能</a></li>
         <li><a href="#">另一個(gè)功能</a></li>
         <li><a href="#">其他</a></li>
         <li class="divider"></li>
         <li><a href="#">分離的鏈接</a></li>
      </ul>
   </div>
</div>

</body>
</html>

結(jié)果如下所示：