HTML 谷歌CDN jQuery本地版后备

Posted 2021-05-24

<!-- Grab Google CDN's jQuery, with a protocol relative URL; fall back to local if necessary -->
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script>window.jQuery || document.write("<script src='jquery/1.3.2/jquery.min.js'>\x3C/script>")</script>
<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.7.3/jquery-ui.min.js"></script>
<script>window.jQuery.ui || document.write("<script src='jqueryui/1.7.3/jquery-ui.min.js'>\x3C/script>")</script>

html jquery：带有后备的CDN

<!--
	Fallback for CDN hosted jQuery
-->
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script>window.jQuery || document.write('<script type="text/javascript" src="assets/js/vendor/jquery-1.10.2.min.js"><\/script>')</script>
<script type="text/javascript">
jQuery.noConflict();
</script>