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<head>
<title>ÓÃjavascript¶¯Ì¬Ìí¼Óɾ³ýhtmlÔªËØ</title>
<script type="text/javascript"><!--
function $(nodeId) {
return document.getElementById(nodeId);
}
function $Name(tagName) {
return document.getElementsByTagName(tagName);
}
function replaceMsg() {
var newNode = document.createElement("P");//´´½¨Ò»¸öP±êÇ©
newNode.innerHTML = "<font color='red'>Ìæ»»ºóµÄÎÄ×Ö</font>";
var oldNode = $Name("P")[0];//»ñÈ¡bodyÀïÃæµÚÒ»¸öpÔªËØ
oldNode.parentNode.replaceChild(newNode,oldNode);//Ö±½ÓÌæ»»Á˱êÇ©
}
function removeMsg() {
var node = $("p2");//p±êÇ©
var nodeBtn = $("remove");//°´Å¥
//node.parentNode.removeChild(node); //ÏÂÃæÐ§¹ûÏàͬ
document.body.removeChild(node);//ÔÚbodyÖÐɾ³ýidΪP2µÄÔªËØ
//nodeBtn.parentNode.removeChild(nodeBtn);//ɾ³ý¸Ã°´Å¥
document.body.removeChild(nodeBtn);
//document.body.removeNode();Ö´ÐÐÕâÌõÓï¾ä½«Çå¿ÕbodyÀïÃæµÄÈκÎÔªËØ
}
function addbefore() {
var newNode = document.createElement("p");//´´½¨P±êÇ©
//var newText = document.createTextNode("Ç°ÃæÌí¼ÓµÄÔªËØ");
//newNode.appendChild(newText);//ÓëÏÂÃæÐ§¹ûÒ»Ñù
newNode.innerHTML = "<font color='red'>Ç°ÃæÌí¼ÓµÄÔªËØ</font>";//ÊéдP±êÇ©ÀïÃæµÄÄÚÈÝ
var oldNode = $("p3");//Ä¿±ê±êÇ©
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oldNode.parentNode.insertBefore(newNode,oldNode);//ÔÚÄ¿±ê±êÇ©Ç°ÃæÌí¼ÓÔªËØ
}
function addlast() {
var newNode = document.createElement("p");//´´½¨P±êÇ©
//var newText = document.createTextNode("ºóÃæÌí¼ÓµÄÔªËØ");
//newNode.appendChild(newText);//ÓëÏÂÃæÐ§¹ûÒ»Ñù
newNode.innerHTML = "<font color='red'>ºóÃæÌí¼ÓµÄÔªËØ</font>";
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