jquery内容追加问题！！！版主帮忙看看！！！！

复制代码                         <ul class="comments">                                 <li class="comments-li">                                 <div class="meta"><a class="name" href="#"><strong>用户名</strong></a> <span class="date">0000-00-00 00:00</span>发表</div>                                 <div class="quote">                                     <a class="name" href="#"><strong>引用ssss的发言：</strong></a><br>                                     一段评论一段评论一段评论                                 </div>                                 <p>一段评论一段评论一段评论</p>                                 <div class="actions"><a href="javascript:;" id="quote">引用</a> <a href="javascript:;" id="support">支持</a> <a href="javascript:;" id="opposition">反对</a></div>                             </li>                             <li class="comments-li">                                 <div class="meta"><a class="name" href="#"><strong>用户名</strong></a> <span class="date">0000-00-00 00:00</span>发表</div>                                 <div class="quote">                                     <a class="name" href="#"><strong>引用ssss的发言：</strong></a><br>                                     一段评论一段评论一段评论                                 </div>                                 <p>一段评论一段评论一段评论</p>                                 <div class="actions"><a href="#">引用</a> <a href="#">支持</a> <a href="#">反对</a></div>                             </li>                             <li class="comments-li">                                 <div class="meta"><a class="name" href="#"><strong>用户名</strong></a> <span class="date">0000-00-00 00:00</span>发表</div>                                 <p>一段评论一段评论一段评论</p>                                 <div class="actions"><a href="javascript:;" onClick="docomment_form()">引用</a> <a href="javascript:;" onClick="docomment_form()">支持</a> <a href="javascript:;" onClick="docomment_form()">反对</a></div>                             </li>                         </ul>

我想要在                        <ul class="comments">里追加内容<li class="comments-li">并且显示在                        <ul class="comments">的第一条！！！

我是这样写的可是去到了最后一条！！！！
$(".comments").append(returndata);

prepend(content)
向每个匹配的元素内部前置内容。
这是向所有匹配元素内部的开始处插入内容的最佳方式。
返回值

jQuery
参数

content (String, Element, jQuery) : 要插入到目标元素内部前端的内容
示例

向所有段落中前置一些HTML标记代码。

HTML 代码:
<p>I would like to say: </p>

jQuery 代码:
$("p").prepend("<b>Hello</b>");

结果:
[ <p><b>Hello</b>I would like to say: </p> ]

将一个DOM元素前置入所有段落

HTML 代码:
<p>I would like to say: </p>
<p>I would like to say: </p>
<b class="foo">Hello</b>
<b class="foo">Good Bye</b>

jQuery 代码:
$("p").prepend( $(".foo")[0] );

结果:
<p><b class="foo">Hello</b>I would like to say: </p>
<p><b class="foo">Hello</b>I would like to say: </p>
<b class="foo">Hello</b>
<b class="foo">Good Bye</b>

向所有段落中前置一个jQuery对象(类似于一个DOM元素数组)。

HTML 代码:
<p>I would like to say: </p><b>Hello</b>

jQuery 代码:
$("p").prepend( $("b") );

结果:
<p><b>Hello</b>I would like to say: </p>

谢了哈！！！！！！！

好！！！！