浅谈jquery中delegate()与live()

<div id="showspan"><span>showspanshowspan</span></div>
<span>outspan</span>
<SCRIPT LANGUAGE="JavaScript">
<!--
//效果就是点击一个段落<div id="showspan">中span标签将在span标签后面添加一个span标签，对于新增的span标签同样可以点击新增一个span标签，新增的标签不需要监听其click事件
$("#showspan").delegate("span", "click", function(){
   $(this).after("<span>showspanshowspan</span>");
});
//-->
</SCRIPT>

<p class="showp">pppppppp</p>
<SCRIPT LANGUAGE="JavaScript">
<!--
$(".showp").live("click", function(){
   $(this).after("<p>pppppppp</p>");
});
//-->
</SCRIPT>