jQuery和带有回退的jqueryui CDN

Posted 2021-02-25

<!-- Grab Google CDN's jQuery & jQuery UI. Fall back to local if necessary -->
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript">
    if (typeof jQuery == 'undefined') {
        document.write(unescape("%3Cscript src='/js/jquery-1.4.2.min.js' type='text/javascript'%3E%3C/script%3E"));
    }
</script>
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jqueryui/1.8.5/jquery-ui.min.js"></script>
<script type="text/javascript">
    if (typeof jQuery.ui == 'undefined') {
        document.write(unescape("%3Cscript src='/js/jquery-ui.min.js' type='text/javascript'%3E%3C/script%3E"));
    }
</script>