这段代码里的这句话是干嘛用的？ newnode.appendChild(newnodeText);

源自：9-15 替换元素节点replaceChild()

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>无标题文档</title>

</head>

<body>

function replaceMessage(){

var newnode = document.createElement("p");

var newnodeText = document.createTextNode("javascript");

newnode.appendChild(newnodeText);

var oldNode = document.getElementById("oldnode");

oldNode.parentNode.replaceChild(newnode,oldNode);

}

</script>

<a href="javascript:replaceMessage()">"Java"替换"Javascript"</a>

</body>

</html>

提问者：呀_砖头 2017-05-19 14:29