【Bootstrap基础学习】02 Bootstarp的布局组件应用示例

<button type="button" class="btn btn-default">
   <span class="glyphicon glyphicon-sort-by-attributes"></span>
</button>

<div class="dropdown">
   <button type="button" class="btn dropdown-toggle" id="dropdownMenu1" 
      data-toggle="dropdown">
      主题
      <span class="caret"></span>
   </button>
   <ul class="dropdown-menu" role="menu" aria-labelledby="dropdownMenu1">
       <li role="presentation" class="dropdown-header">下拉菜单标题</li>
      <li role="presentation">
         <a role="menuitem" tabindex="-1" href="#">选项1</a>
      </li>
      <li role="presentation">
         <a role="menuitem" tabindex="-1" href="#">选项2</a>
      </li>
      <li role="presentation">  
         <a role="menuitem" tabindex="-1" href="#">选项3</a>
      </li>
      <li role="presentation" class="divider"></li><!--分割线-->
      <li role="presentation">
         <a role="menuitem" tabindex="-1" href="#">分离的链接</a>
      </li>
   </ul>
</div>

<div class="btn-toolbar" role="toolbar"><!--用来嵌套btn-group-->
    <div class="btn-group btn-group-lg">
    <!--btn-group-lg用来控制按钮组的大小,bt-group-vertical是垂直的按钮组,bt-group也可以嵌套bt-group-->
      <button type="button" class="btn btn-default">Button 1</button>
      <button type="button" class="btn btn-default">Button 2</button>
      <button type="button" class="btn btn-default">Button 3</button>
     </div>
      <div class="btn-group btn-group-sm">
      <button type="button" class="btn btn-default">Button 4</button>
      <button type="button" class="btn btn-default">Button 5</button>
      <button type="button" class="btn btn-default">Button 6</button>
    </div>
      <div class="btn-group btn-group-xs">
      <button type="button" class="btn btn-default">Button 7</button>
      <button type="button" class="btn btn-default">Button 8</button>
      <button type="button" class="btn btn-default">Button 9</button>
    </div>
</div>

   <div class="btn-group"><!--加类.dropup可以变成按钮上拉菜单-->
      <button type="button" class="btn btn-default dropdown-toggle"   
         data-toggle="dropdown"> <!-- 加类.btn-xs之类的东西改变按钮大小-->
         默认 <span class="caret"></span>
      </button>
      <ul class="dropdown-menu" role="menu">
         <li><a href="#">功能</a></li>
         <li><a href="#">另一个功能</a></li>
         <li><a href="#">其他</a></li>
         <li class="divider"></li><!--分割线-->
         <li><a href="#">分离的链接</a></li>
      </ul>
   </div>

<form class="bs-example bs-example-form" role="form">
      <div class="input-group  input-group-lg"><!--input-group-lg调整输入框组大小-->
         <input type="text" class="form-control">
         <span class="input-group-addon">.00</span>
      </div>
      <br>
      <div class="input-group">
         <span class="input-group-addon">
            <input type="checkbox"><!--复选框和单选框都能应用于输入框组-->
         </span>
         <input type="text" class="form-control">
      </div>
       <br>
      <div class="input-group">
         <input type="text" class="form-control">
         <span class="input-group-btn"><!--按钮也能应用于输入框组请注意这里的类变为了input-group-btn，甚至可以加上前面的按钮下拉菜单-->
             <button class="btn btn-default" type="button">
                 Go!
             </button>
          </span>
       </div>
   </form>