為什么把選擇器設為“#ul“是效果不能出來？而把“#ul”改為“ul”即可，$(Id).focusColor(color)里面的id不是表示id嗎？$(Id).focusColor(color)其中，參數Id表示<ul>元素的Id號，color表示<li>元素選中時的背景色。<!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>??????? <title>自定義對象級別插件</title>??????? <link href="style.css" rel="stylesheet" type="text/css" />??????? <script type="text/javascript" src="http://www.xianlaiwan.cn/data/jquery-1.8.2.min.js"></script>??????? <script src="http://www.xianlaiwan.cn/data/jquery.lifocuscolor.js" type="text/javascript"></script>??? </head>?? ???? <body>??????? <div id="divtest">??????????? <div class="title">??????????????? <span class="fl">對象級別的插件</span>??????????? </div>??????????? <div class="content">??????????????? <ul id="u1">??????????????????? <li><span>橘子</span><span>水果</span></li>??????????????????? <li><span>芹菜</span><span>蔬菜</span></li>??????????????????? <li><span>香蕉</span><span>水果</span></li>??????????????? </ul>??????????? </div>??????? </div>?????? ???????? <script type="text/javascript">??????????? $(function () {??????????????? $("#ul").focusColor("#ccc");//問題在這里 ??????????? })??????? </script>??? </body></html>
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