Google Jquery CDN 官網介紹 引入google-jquery-cdn的方法如下：

方式一： 

<script  type="text/javascript"
    src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js">
</script>

方式二：

<script src="http://www.google.com/jsapi" type="text/javascript"></script>
<script type="text/javascript"><!--
google.load("jquery", "1.7.1");
google.setOnLoadCallback(function() {
// Place init code here instead of $(document).ready()
});
// -->
</script>
 

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script type="text/javascript">
if (typeof jQuery == 'undefined')
{
  document.write(unescape("%3Cscript src='Scripts/jquery.1.7.1.min.js' type='text/javascript'%3E%3C/script%3E"));
}
</script>
 

google.load("jqueryui", "1");