jquery怎樣擷取一個元素下面相同子項目的個數，jquery個數
例如下面的html代碼，要擷取P元素下面a元素的個數：
<p id="father"><a></a><a></a><a></a><a></a><a></a>……<a></a></p>我們可以這樣寫：
$("#father a").length
$("#father li").length
jquery 點擊一個元素 怎取得這個元素是父元素中第幾個相同元素的下標？
type應該是button吧？用index，很方便，如下
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "www.w3.org/...al.dtd">
<html xmlns="www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>無標題文檔</title>
</head>
<script src="js/jquery-1.4.4.js" language="javascript" type="text/javascript"></script>
<script language="javascript" type="text/javascript">
$(document).ready(function(){
$("div :button").click(function(){
alert($(this).index()+1);
});
});
</script>
</script>
<body>
<div>
<input type="button" value="說明">
<input type="button" value="查看">
<input type="button" value="提交">
</div>
<div>
<input type="button" value="說明">
<input type="button" value="查看">
<input type="button" value="提交">
</div>
<div>
<input type="button" value="說明">
<i......餘下全文>>
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
