Conversion of jQuery objects and dom objects
Conversion of jquery objects and dom objects
##jquery The object is converted into a dom object: $()[subscript]
<!DOCTYPE html>
<html>
<head>
<title>php.cn</title>
<meta charset="utf-8" />
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
<script>
function f1(){
//jquery對(duì)象 轉(zhuǎn)化為 dom對(duì)象 進(jìn)而調(diào)用dom的成員
$('#apple')[0].style.backgroundColor = "blue";
$('li')[1].style.backgroundColor = "brown";
}
</script>
<style type="text/css">
div {width:300px;height:200px; background-color:pink;}
</style>
</head>
<body>
<div id="apple"></div>
<ul>
<li>北京</li>
<li>上海</li>
<li>深圳</li>
</ul>
<input type="button" value="觸發(fā)1" onclick="f1()" />
</body>
</html>Convert dom object to jquery object: $(dom object)
<!DOCTYPE html>
<html>
<head>
<title>php.cn</title>
<meta charset="utf-8" />
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
<script>
function f1(){
//dom對(duì)象 變?yōu)?nbsp;jquery對(duì)象: $(dom對(duì)象)
//注意：每次只能是"一個(gè)"dom對(duì)象變?yōu)閖query對(duì)象
var dv = document.getElementById('apple');
$(dv).css('background-color','green');
var lis = document.getElementsByTagName('li');
$(lis[2]).css('color','red');
}
</script>
<style type="text/css">
div {width:300px;height:200px; background-color:pink;}
</style>
</head>
<body>
<div id="apple"></div>
<ul>
<li>北京</li>
<li>上海</li>
<li>深圳</li>
</ul>
<input type="button" value="觸發(fā)1" onclick="f1()" />
</body>
</html>
