JQ层次选择器

选择某个具体层次下的子层次,比如选择有p的div:

$("div p")

 

 

<!DOCTYPE html>
<html>

    <head>
        <meta charset="utf-8" />
        <title></title>
        <script src="js/JQ3.3.1.js"></script>
        <link rel="stylesheet" type="text/css" href="css/style.css" />
        <script type="text/javascript">
            $(function(){
                $("div p").attr("class","txt");
            })
        </script>
    </head>

    <body>
        <div id="showMsg">
            <h1>test</h1></div>
        <div id="showMsg">
            <h1>test</h1></div>
        <span class="temp">test</span>
        <span>test</span>
        <p class="temp">test</p>
        <p>test</p>
        <div>
            <p>test</p>
            <p>test</p>
        </div>
    </body>

</html>

 

posted on 2018-04-18 18:53  三盛乙烯  阅读(100)  评论(0编辑  收藏  举报

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