问题是>我的个人资料<的下拉菜单不会让它下拉。当您单击>我的个人资料<下的导航栏时，没有任何内容落下。无法弄清楚这个问题。网页上应显示>我的个人资料<（下拉）朋友/照片/设置。这是我的代码：
<!doctype html>
<html lang="en">
<head>
<title>My page is Dynamic</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css">
<script src="http://code.jquery.com/jquery-2.1.4.min.js"</script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
</head>
<body>
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<!-- Logo -->
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="mainNavBar"
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a href="#" class="navbar-brand">THEONEEYENICKY'SWEB</a>
</div>
<!-- Menu Item -->
<div>
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Contact</a></li>
<!-- drop down menu -->
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">My Profile <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Friends</a></li>
<li><a href="#">Photos</a></li>
<li><a href="#">Settings</a></li>
</ul>
</li>
</ul>
</div>
</div>
</nav>
</body>
</html>
缺少“>”
<script src="http://code.jquery.com/jquery-2.1.4.min.js"></script>
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我来说两句