请教 dropdown 下拉出不来
照着老师的做下来的 不知道哪里有问题。求大神帮我看下
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,minimum-scale=1,user-scalable=no">
<link rel="stylesheet" href="./css/bootstrap.min.css">
<script src="http://libs.baidu.com/jquery/2.0.0/jquery.js"></script>
<script src="./js/bootstrap.min.js"></script>
<title>dropdown</title>
</head>
<body>
<div>
<button class="btn btn-default dropdown-toggle" data-toggle="
dropdown">
这是按钮
<span></span>
</button>
<ul>
<li>
<a href="#">链接</a>
</li>
<li>
<a href="#">链接</a>
</li>
<li>
<a href="#">链接</a>
</li>
</ul>
</div>
</body>
</html>
