Bootstrap - 下拉菜单不工作？(Bootstrap - dropdown menu not working?)

 我的Bootstrap下拉菜单似乎没有工作 - 任何人都可以提醒我这个问题？ 现在它显示下拉列表，但点击它什么都不做。 谢谢！ 
 
 JS： 
 
$(document).ready( function() {
$('.dropdown-toggle').dropdown();
});
 
 HTML： 
 
<div class="navbar navbar-fixed-top">
    <div class="navbar-inner">
        <div class="container" style="width: auto;">

            <a class="brand" style="text-indent: 3em" href="#">
                Title
            </a>

            <ul class="nav">
                <li><a href="#">Profile</a></li>
                <li class="active"><a href="#">Statistics</a></li>
                <li><a href="#">Reader</a></li>

                <li class="dropdown" id="menu1">
                    <a class="dropdown-toggle" data-toggle="dropdown" href="#menu1">
                    Options
                    <b class="caret"></b>
                    </a>
                    <ul class="dropdown-menu">
                        <li><a href="#">Action</a></li>
                        <li><a href="#">Another action</a></li>
                        <li><a href="#">Something else here</a></li>
                        <li class="divider"></li>
                        <li><a href="#">Separated link</a></li>
                    </ul>
                </li>

            </ul>


        </div>
    </div>
</div>

My dropdown menu in Bootstrap doesnt appear to be working - can anyone alert me to the problem? Right now it displays the dropdown, but clicking it does nothing. Thanks!
 
JS:
 
$(document).ready( function() {
$('.dropdown-toggle').dropdown();
});
 
HTML:
 
<div class="navbar navbar-fixed-top">
    <div class="navbar-inner">
        <div class="container" style="width: auto;">

            <a class="brand" style="text-indent: 3em" href="#">
                Title
            </a>

            <ul class="nav">
                <li><a href="#">Profile</a></li>
                <li class="active"><a href="#">Statistics</a></li>
                <li><a href="#">Reader</a></li>

                <li class="dropdown" id="menu1">
                    <a class="dropdown-toggle" data-toggle="dropdown" href="#menu1">
                    Options
                    <b class="caret"></b>
                    </a>
                    <ul class="dropdown-menu">
                        <li><a href="#">Action</a></li>
                        <li><a href="#">Another action</a></li>
                        <li><a href="#">Something else here</a></li>
                        <li class="divider"></li>
                        <li><a href="#">Separated link</a></li>
                    </ul>
                </li>

            </ul>


        </div>
    </div>
</div>

原文：https://stackoverflow.com/questions/9529574