<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta charset="UTF-8"> <title>Title</title> <style> .hide{ display: none; } .menu{ height: 38px; background-color: #eeeeee; line-height: 38px; } .active{ background-color: brown; } .menu .menu-item{ float: left; border-right: 1px solid red; padding: 0 5px; cursor: pointer; } .content{ min-height: 100px; border: 1px solid #eeeeee; } </style> </head> <body> <div style="width: 700px;margin:0 auto"> <div class="menu"> <div class="menu-item active" >菜单一</div> <div class="menu-item" >菜单二</div> <div class="menu-item" >菜单三</div> </div> <div class="content"> <div >内容一</div> <div class="hide" >内容二</div> <div class="hide">内容三</div> </div> </div> <script src="jquery-1.12.4.js"></script> <script> $(‘.menu-item‘).click(function () { $(this).addClass(‘active‘).siblings().removeClass(‘active‘); // var res=$(this).index() // var tes=$(‘.content‘).children(res) // console.log(tes) // 获取索引位置 $(‘.content‘).children().eq($(this).index()).removeClass(‘hide‘).siblings().addClass(‘hide‘); }); </script> </body> </html>
原文：http://www.cnblogs.com/xuehuahongmei/p/6146740.html
