<!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 id="content"> <h1>html</h1> <h1>php</h1> <h1>javascript</h1> <h1>jquery</h1> <h1>java</h1></div><script type="text/javascript">var content=document.getElementById("content");function clearText() { // 在此完成该函数 var a=document.getElementById("a"); var i=content.removeChild(content.childNodes[0]); a.innerHTML=i.innerHTML}function clearText1(){ var arr=new Array(); for(var i=0;i<content.childNodes.length;i++){ arr[i]=content.removeChild(content.childNodes[0]); } document.getElementById("a").innerHTML=content.childNodes.length;}</script><button onclick="clearText1()">清除节点内容</button><p id="a">擦</p></body></html>
添加回答
举报
0/150
提交
取消