<!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)
??var?banana=document.getElementsByTagName("h1");
??for?(var?i=0;i<banana.length;i++)?{
??????content.removeChild(banana[i]);
??}
??
}
</script>
<button?onclick="clearText()">清除節(jié)點內(nèi)容</button>
</body>
</html>
為什么我要按三次才能全部刪除，怎么做到點擊一次就能全部刪除？
劍斂卿塵
2015-12-15 18:07:16
