在线运行代码 - 菜鸟教程

<!DOCTYPE html>
<html>
<head>
<script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
  $("a[hreflang|='en']").css("background-color","yellow");});
</script>
</head>
<body>

<a href="http://w3cschool.cc" hreflang="en">w3cschool.cc</a><br>
<a href="http://w3cschool.cc" hreflang="en-us">w3cschool.cc</a><br>
<a href="http://w3cschool.cc" hreflang="us-en">w3cschool.cc</a><br>
<a href="http://w3cschool.cc" hreflang="fr">w3cschool.cc</a>

<p>This selector selects both "en" and "en-us".</p>

</body>
</html>
源代码

动行结果
