<li class="drop admin active"> <a href="#" id="myTabDrop2" class="dico-cl bluray"><span class="name">4</span><b class="caret"></b></a>
<ul class="drop-menu" role="menu" aria-labelledby="myTabDrop2">
<li><a class="dico-cl" href="#con_list_1">1</a></li>
<li><a class="dico-cl" href="#con_list_2">2</a></li>
<li><a class="dico-cl" href="#con_list_3">3</a></li>
<li><a class="dico-cl" href="#con_list_4">4</a></li>
</ul> </li>js $(".admin .drop-menu li").click(function() { var sclass = $(this).find('a').attr('class'); var stext = $(this).text();
$("#myTabDrop2 .name").text(stext);
$("#myTabDrop2").removeClass($("#myTabDrop2").attr('class'));
$("#myTabDrop2").addClass(sclass);
});默认显示的<span class="name">4</span>里的4变成第一个li的1
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