<html>
<script type="text/javascript">
var demo = document.getElementById("demo");
var tagName = demo.tagName;
alert(tagName );
</script>
<span id="demo">I am Here!</span>
</html>
JS获取当前对象标签名称
<html>
<script type="text/javascript">
var demo = document.getElementById("demo");
var tagName = demo.tagName;
alert(tagName );
</script>
<span id="demo">I am Here!</span>
</html>
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