<div id="header"></div><div id="main"> <!--左側邊欄--> <div class="affix">  <h4>用戶中心</h4>  <ul>   <li><a href="#container-myorder" rel="external nofollow" >我的訂單</a></li>   <li><a href="#container-buy-stat-canvas" rel="external nofollow" >消費統計（Canvas版）</a></li>   <li><a href="#container-buy-stat-svg" rel="external nofollow" >消費統計（SVG版）</a></li>   <li><a href="#container-luck-lottery" rel="external nofollow" >幸運抽獎</a></li>  </ul> </div> <!--右側主體區域--> <div class="right-body">  <div class="active" id="container-myorder">我的訂單</div>  <div id="container-buy-stat-canvas">消費統計（Canvas）</div>  <div id="container-buy-stat-svg">消費統計（SVG）</div>  <div id="container-luck-lottery">幸運抽獎</div> </div></div><div id="footer"></div>

#main .affix { box-sizing: border-box; width: 210px; float: left; padding: 15px;}.affix h4 { font-size: 1.2em; margin: 10px 0;}.affix ul li{ padding: 5px 20px;}.affix ul li.active a{ color: #e4393c; font-weight: bold;}#main .right-body { box-sizing: border-box; margin-left: 210px; padding: 15px;}#main .right-body > div { display: none; min-height: 300px;}#main .right-body > div.active { display: block;}

$('.affix ul li a').click(function(e){ e.preventDefault(); //修改li的active的位置 $(this).parent().addClass('active').siblings('.active').removeClass('active'); //修改右側主體中的div的active的位置 var id = $(this).attr('href'); $(id).addClass('active').siblings('.active').removeClass('active');});