菜鸟教程 CDN：
<head>
<script src="http://cdn.static.runoob.com/libs/jquery/1.10.2/jquery.min.js">
</script>
</head>
百度 CDN:
<head>
<script src="https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js">
</script>
</head>
又拍云 CDN:
<head>
<script src="http://upcdn.b0.upaiyun.com/libs/jquery/jquery-2.0.2.min.js">
</script>
</head>
新浪 CDN:
<head>
<script src="http://lib.sinaapp.com/js/jquery/2.0.2/jquery-2.0.2.min.js">
</script>
</head>
Google CDN:
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js">
</script>
</head>
Microsoft CDN:
<head>
<script src="http://ajax.htmlnetcdn.com/ajax/jQuery/jquery-1.10.2.min.js">
</script>
</head>