<!DOCTYPE?HTML>
<html>
<head>
<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8">
<title>無標題文檔</title>
</head>
<body>
<div?id="content">
<h1>html</h1><h1>php</h1><h1>javascript</h1><h1>jquery</h1><h1>java</h1></div>
<script?type="text/javascript">
function?clearText()?{
??var?content=document.getElementById("content");
??//?在此完成該函數(shù)
??for(var?i=0;i<content.childNodes.length;i++){
??????var?x?=content.removeChild(content.childNodes[i]);
??????x=null;
??}
??
}
</script>
<button?onclick="clearText()">清除節(jié)點內(nèi)容</button>
</body>
</html>
2018-06-14
這樣一次刪除
2018-06-14
for(var?i=0;i<content.childNodes.length;i++) {?????? ????if(content.childNodes[i]&&content.childNodes[i].nodeType!=1) ????{?????????? ????????continue;?????? ????}else{ ??????????content.removeChild(content.childNodes[i]); ????}???? }2018-06-11
循環(huán)改成i+2及以上都能一次刪完。。