下拉菜單的js實現時為什么隱藏不了？
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>下拉菜單--屬性聲明式方法（一）</title>
<link rel="stylesheet" >
</head>
<body>
<h3>示例2</h3>
<ul class="nav nav-pills">
??? <li class="dropdown">
??<a href="##"? class="dropdown-toggle" role="button" id="tutorial">教程<b class="caret"></b></a>
??<ul class="dropdown-menu" role="menu" aria-labelledby="tutorial">
???<li role="presentation"><a href="##">CSS3</a></li>
???<li role="presentation"><a href="##">HTML5</a></li>
???<li role="presentation"><a href="##">Sass</a></li>
??</ul>
?</li>
</ul>
<script src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<!--下面是代碼任務區-->
<script>
??? $(function(){
???????? $(".dropdown-toggle").dropdown() ;?
??? });
</script>
</body>
</html>
2017-10-10
如官網上所說，data-toggle="dropdown"不能省略
data-toggle="dropdown"?still required
Regardless of whether you call your dropdown via JavaScript or instead use the data-api,?data-toggle="dropdown"?is always required to be present on the dropdown's trigger element.
2017-09-13
<script>
$(function(){
? ?$(".dropdown-toggle").one("click",function(){
? ? ? ?$(this).dropdown("toggle");
? ?})
})
</script>
2017-01-06
在a標簽那邊少了data-toggle="dropdown"