错在哪，结果没变化-慕课网

错在哪，结果没变化

来源：9-15 替换元素节点replaceChild()

慕田峪6997291

2017-03-13 15:20

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<div><b id="oldnode">JavaScript</b>是一个很常用的技术，为网页添加动态效果。</div>
<a href="javascript:replaceMessage()"> 将加粗改为斜体</a>

    <script type="text/javascript">
      function replaceMessage(){
        var oldnode=document.getElementById("oldnode");
        var newnode=document.creatElement("i");
        newnode.innerHTML=oldnode.innerHTML;
        oldnode.parentNode.replaceChild(newnode,oldnode);

       }
</script>

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