JQuery遍历元素的后代和同胞实现方法

2020-05-27 18:15:43易采站长站整理

<span id="span2"></span>
<p id="p3"></p>
</div>

</body>
</html>

nextAll()

nextAll() 方法返回被选元素的所有跟随的同胞元素。


<!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=utf-8" />
<title>无标题文档</title>
<style type="text/css">
</style>
<script type="text/javascript" src="jQuery/jquery-1.12.1.js"></script>
<script type="text/javascript">
$(function(){
$("#btn").click(function(){
$("#p2").nextAll().each(function(i, e) {
$("#info").html($("#info").html()+"第"+i+"个同胞是,("+$(this).attr("id")+")");
});
});
});
</script>
</head>
<body>
<input type="button" value="点击" id="btn"><div id="info"></div>
<div id="div1">
<div id="div2">
<div id="div3">
<div id="div4">
</div>
</div>
</div>
<p id="p1"></p>
<p id="p2"></p>
<span id="span1"></span>
<span id="span2"></span>
<p id="p3"></p>
</div>

</body>
</html>

nextUntil()

nextUntil() 方法返回介于两个给定参数之间的所有跟随的同胞元素。


<!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=utf-8" />
<title>无标题文档</title>
<style type="text/css">
</style>
<script type="text/javascript" src="jQuery/jquery-1.12.1.js"></script>
<script type="text/javascript">
$(function(){
$("#btn").click(function(){
$("#p2").nextUntil("#p3").each(function(i, e) {
$("#info").html($("#info").html()+"第"+i+"个同胞是,("+$(this).attr("id")+")");
});
});
});
</script>
</head>
<body>
<input type="button" value="点击" id="btn"><div id="info"></div>
<div id="div1">
<div id="div2">
<div id="div3">
<div id="div4">
</div>
</div>
</div>
<p id="p1"></p>
<p id="p2"></p>