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<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>无标题文档</title> </head> <body> <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"); oldnode.parentNode.replaceChild(newnode,oldnode); </script> </body> </html>
为什么这个不对啊?