我有div带span标签的标签.如何div使用CSS或JavaScript中的类名为标记添加编号列表
<div id="editsum">
<div class="esum"><span id="1430568488933" class="tbold">nde</span></div>
<div class="esum"><span id="1430568576033" class="tbold">ca</span></div>
<div class="esum"><span id="1430568582173" class="tdel">tim</span></div>
<div class="esum"><span id="1430568582173" class="tins">Ó</span></div>
<div class="esum"><span id="1430914284123" class="tdel">non</span></div>
<div class="esum"><span id="1430914309275" class="tdel">cu</span></div>
</div>