如取id为all下的第一级div(就是有id的那些) 取他们的集合
怎么取啊
不要用id div个数不确定
象我下面那么取就不对 取的是所有的了
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title></title>
<style type="text/css"></style>
</head><body>
<script type="text/javascript">
window.onload = function(){
var d = document.getElementById('all');
alert(d.getElementsByTagName("div").length);
}
</script>
<div id='all'>
<div id='a1'>
<div>1-1</div>
<div>1-2</div>
</div>
<a></a><a></a>
<br><hr>
<div id='a2'></div>
<a></a><a></a><a></a>
<div id='a3'></div>
<a></a>
<div id='a4'></div>
<a></a><a></a><a></a><a></a><a></a>
<div id='a5'></div>
</div>
</body>
</html>
怎么取啊
不要用id div个数不确定
象我下面那么取就不对 取的是所有的了
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title></title>
<style type="text/css"></style>
</head><body>
<script type="text/javascript">
window.onload = function(){
var d = document.getElementById('all');
alert(d.getElementsByTagName("div").length);
}
</script>
<div id='all'>
<div id='a1'>
<div>1-1</div>
<div>1-2</div>
</div>
<a></a><a></a>
<br><hr>
<div id='a2'></div>
<a></a><a></a><a></a>
<div id='a3'></div>
<a></a>
<div id='a4'></div>
<a></a><a></a><a></a><a></a><a></a>
<div id='a5'></div>
</div>
</body>
</html>
var d = document.getElementById('all');
var div=[];
var len=d.children.length;
for(var i=0;i<len;i++) {
var cur=d.children[i];
if(typeof(cur)!=="undefined" && cur.nodeName=="div")
div.push(d.children[i]);
}
alert(div.length);
var d = document.getElementById('all');
var div=[];
var len=d.children.length;
for(var i=0;i<len;i++) {
var cur=d.children[i];
if(typeof(cur)!=="undefined" && cur.nodeName=="DIV")
div.push(cur);//这里直接写了
}
alert(div.length);
var div=[];for(var i=0;i<d.childNodes.length;i++) {
var cur=d.childNodes[i];
if(typeof(cur)!=="undefined" && cur.nodeName=="div")
div.push(d.childNodes[i]);
}
你的出发点是框架应用组合语句定位行,XPath定位也行,框架选择器也行。我话说绝对了,因为最近搞的项目天天接触XPath,我觉得方便直观明了。