jquery点击导航栏选中更换样式

<!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> new document </title>
  <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
 <body>
  <style>
*{ margin:0; padding:0; border:0px; list-style:none; margin:0 auto;}
*a { text-decoration:none; color:#FFF;}
ul { width:800px; height:30px; background-color:#C33;}
ul li { float:left; width:160px; height:30px; line-height:30px; text-align:center; color:#FFFFFF;}
ul li a { color:#FFFFFF; display:block; width:160px; height:30px; text-decoration:none;}
.first { background-color:#0000FF;}
ul li a:hover {color:#FFF; display:block; width:160px; height:30px; text-decoration: underline; background-color:#03F;}
</style>
<script type="text/javascript" src="jquery-1.7.1.min.js"></script>
<script language="javascript" type="text/javascript">
        $(document).ready(function (){
              $("li").each(function(index){
              $(this).click(function(){ 
              $("li").removeClass("first");
              $("li").eq(index).addClass("first");
             });
          });
         });
</script>
</head>
<body>
    <ul>
        <li class="first"><a href="#">首页</a></li>
        <li><a href="#">列表</a></li>
        <li><a href="#">内容</a></li>
        <li><a href="#">联系</a></li>
        <li><a href="#">关于</a></li>
    </ul>
</body>
</html>
 </body>
</html>

原文地址:https://www.cnblogs.com/yangzailu/p/6343666.html