采用jq链(end方法和andSelf()方法)

end()方法:

<style type="text/css">
.m1{background:#09C;}
.m2{border:1px solid #000;}
</style>
<script src="../jquery-1.3.1.min.js"></script>
<script language="javascript">
$(function(){
   $("p").find("span").addClass("m1").end().addClass("m2");  
})
</script>
</head>

<body>
<p>hello,<span>how</span> are you?</p>
<span>hello, </span>how are you?

 

andSelf()方法:


<style type="text/css">
.m1{background:#09C;}
.m2{border:1px solid #000;}
</style>
<script src="../jquery-1.3.1.min.js"></script>
<script language="javascript">
$(function(){
    $("div").find("p").addClass("m1").andSelf().addClass("m2");
})
</script>
</head>

<body>

<div>
   <p>第一张</p>
   <p>第二章</p>
</div>

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