tryjsref_anchor_hreflang 在线代码实例

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<!DOCTYPE html>
<html>
<body>
<a id="w3s" hreflang="en-us" href="http://www.w3cschool.cn/">W3Cschool</a><br>
<script>
document.write("Return hreflang of link: ");
document.write(document.getElementById('w3s').hreflang);
document.write("<br><br>");
</script>
<a id="google" href="http://www.google.com/">Google</a><br>
<script>
document.getElementById('google').hreflang="no";
document.write("Set hreflang of link to: ");
document.write(document.getElementById('google').hreflang);
</script>
</body>
</html>
 
 
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运行结果
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