使用微软静态资源库
<script src="http://ajax.aspnetcdn.com/ajax/jquery/jquery-1.9.0.min.js"></script>
为了让您的页面回退,如果CDN不可用,从本地路径加载jQuery,请在引用CDN的元素后立即添加以下元素:
<script>
// Fallback to loading jQuery from a local path if the CDN is unavailable
(window.jQuery || document.write('<script src="/scripts/jquery-1.9.0.min.js"><\/script>'));
</script>