BootStrap学习(2)_下拉菜单&按钮组

一、下拉菜单

1.基本下拉菜单

如需使用下列菜单，只需要在class .dropdown 内加上下拉菜单即可。下面的实例演示了基本的下拉菜单：

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
   
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
  <link href="http://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="http://apps.bdimg.com/libs/jquery/2.0.0/jquery.min.js"></script>
<script src="http://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>

</head>
<body>
    <div class="dropdown">
   <button type="button" class="btn dropdown-toggle"  
      data-toggle="dropdown">
      二手家电
      <span class="caret"></span>
   </button>
   <ul class="dropdown-menu">
      <li>
         <a href="#">冰箱</a>
      </li>
      <li>
         <a href="#">洗衣机</a>
      </li>
      <li>
         <a href="#">
            电视
         </a>
      </li>
      <li class="divider"></li>
      <li>
         <a href="#">热水器</a>
      </li>
   </ul>
</div>
</body>
</html>

效果图:

2.标题

您可以使用 class dropdown-header 向下拉菜单的标签区域添加标题

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
   
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
  <link href="http://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="http://apps.bdimg.com/libs/jquery/2.0.0/jquery.min.js"></script>
<script src="http://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>

</head>
<body>
    <div class="dropdown">
   <button type="button" class="btn dropdown-toggle"
      data-toggle="dropdown">
      58二手市场
      <span class="caret"></span>
   </button>
   <ul class="dropdown-menu" >
      <li class="dropdown-header">二手电器(下拉菜单标题)</li>
        <li>
         <a   href="#">冰箱</a>
      </li>
      <li>
         <a href="#">洗衣机</a>
      </li>
      <li>
         <a href="#">
            电视
         </a>
      </li>
      <li class="divider"></li>
       <li class="dropdown-header">二手家私(下拉菜单标题)</li>
      <li>
         <a href="#">沙发</a>
      </li>
       <li>
         <a href="#">电脑桌</a>
      </li>
       <li>
         <a href="#">床</a>
      </li>
   </ul>
</div>
</body>
</html>

效果图:

二、按钮组

按钮组允许多个按钮被堆叠在同一行上。当你想要把按钮对齐在一起时，这就显得非常有用。

下面的表格总结了 Bootstrap 提供的使用按钮组的一些重要的 class：

1.基本的按钮组

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
   
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
  <link href="http://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="http://apps.bdimg.com/libs/jquery/2.0.0/jquery.min.js"></script>
<script src="http://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>

</head>
<body>
   <div class="btn-group">
  <button type="button" class="btn btn-default">按钮 1</button>
  <button type="button" class="btn btn-default">按钮 2</button>
  <button type="button" class="btn btn-default">按钮 3</button>
</div> 
</body>
</html>

View Code

效果:

2.按钮工具栏

class .btn-toolbar 的使用

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
   
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
  <link href="http://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="http://apps.bdimg.com/libs/jquery/2.0.0/jquery.min.js"></script>
<script src="http://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>

</head>
<body>
  <div class="btn-toolbar" role="toolbar">
  <div class="btn-group">
  <button type="button" class="btn btn-default">按钮 1</button>
  <button type="button" class="btn btn-default">按钮 2</button>
  <button type="button" class="btn btn-default">按钮 3</button>
 </div>
  <div class="btn-group">
  <button type="button" class="btn btn-default">按钮 4</button>
  <button type="button" class="btn btn-default">按钮 5</button>
  <button type="button" class="btn btn-default">按钮 6</button>
  </div>
  <div class="btn-group">
  <button type="button" class="btn btn-default">按钮 7</button>
  <button type="button" class="btn btn-default">按钮 8</button>
  <button type="button" class="btn btn-default">按钮 9</button>
  </div>
</div>
</body>
</html>

View Code

效果:

3.嵌套

在一个 .btn-group 内嵌套另一个 .btn-group 。当您向让下拉菜单与一系列按钮组合使用时，就会用到这个。

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title></title>
    <link href="http://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" />
    <script src="http://apps.bdimg.com/libs/jquery/2.0.0/jquery.min.js"></script>
    <script src="http://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>

</head>
<body>

    <div class="btn-group">
        <button type="button" class="btn btn-default">按钮 1</button>
        <button type="button" class="btn btn-default">按钮 2</button>
        <div class="btn-group">
            <button type="button" class="btn btn-default dropdown-toggle"
                data-toggle="dropdown">
                二手家电
      <span class="caret"></span>
            </button>
            <ul class="dropdown-menu">
                <li><a href="#">冰箱</a></li>
                <li><a href="#">洗衣机</a></li>
            </ul>
        </div>
    </div>
</body>
</html>

View Code

效果:

4.垂直的按钮组

class .btn-group-vertical 的使用

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title></title>
    <link href="http://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" />
    <script src="http://apps.bdimg.com/libs/jquery/2.0.0/jquery.min.js"></script>
    <script src="http://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>

</head>
<body>

    <div class="btn-group-vertical">
        <button type="button" class="btn btn-default">按钮 1</button>
        <button type="button" class="btn btn-default">按钮 2</button>
        <div class="btn-group-vertical">
            <button type="button" class="btn btn-default dropdown-toggle"
                data-toggle="dropdown">
                二手家电
      <span class="caret"></span>
            </button>
            <ul class="dropdown-menu">
                <li><a href="#">冰箱</a></li>
                <li><a href="#">洗衣机</a></li>
            </ul>
        </div>
    </div>
</body>
</html>

View Code

效果:

5.分割的按钮下拉菜单

分割的按钮下拉菜单使用与下拉菜单按钮大致相同的样式，但是对下拉菜单添加了原始的功能。分割按钮的左边是原始的功能，右边是显示下拉菜单的切换。

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title></title>
    <link href="http://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" />
    <script src="http://apps.bdimg.com/libs/jquery/2.0.0/jquery.min.js"></script>
    <script src="http://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>

</head>
<body>

    <div class="btn-group">
   <button type="button" class="btn btn-default">默认</button>
   <button type="button" class="btn btn-default dropdown-toggle" 
      data-toggle="dropdown">
      <span class="caret"></span>
   </button>
   <ul class="dropdown-menu" role="menu">
      <li><a href="#">功能1</a></li>
      <li><a href="#">功能2</a></li>
      <li><a href="#">其他功能</a></li>
      <li class="divider"></li>
      <li><a href="#">分离的链接</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>
   </button>
   <ul class="dropdown-menu" role="menu">
      <li><a href="#">功能1</a></li>
      <li><a href="#">功能2</a></li>
      <li><a href="#">其他功能</a></li>
      <li class="divider"></li>
      <li><a href="#">分离的链接</a></li>
   </ul>
</div>

</body>
</html>

View Code

效果:

6.按钮上拉菜单

菜单也可以往上拉伸的，只需要简单地向父 .btn-group 容器添加 .dropup 即可。

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title></title>
    <link href="http://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" />
    <script src="http://apps.bdimg.com/libs/jquery/2.0.0/jquery.min.js"></script>
    <script src="http://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>

</head>
<body style="margin-top:200px;">

    <div class="btn-group">
   <button type="button" class="btn btn-default">默认</button>
   <button type="button" class="btn btn-default dropdown-toggle" 
      data-toggle="dropdown">
      <span class="caret"></span>
   </button>
   <ul class="dropdown-menu" role="menu">
      <li><a href="#">功能1</a></li>
      <li><a href="#">功能2</a></li>
      <li><a href="#">其他功能</a></li>
      <li class="divider"></li>
      <li><a href="#">分离的链接</a></li>
   </ul>
</div>
<div class="btn-group dropup">
   <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>
   </button>
   <ul class="dropdown-menu" role="menu">
      <li><a href="#">功能1</a></li>
      <li><a href="#">功能2</a></li>
      <li><a href="#">其他功能</a></li>
      <li class="divider"></li>
      <li><a href="#">分离的链接</a></li>
   </ul>
</div>

</body>
</html>

View Code

效果: