Jquery如何只复制节点不复制节点内容
<script type="text/javascript">
function addmore(classname) {
$('.'+classname).next('.addframe').append('<br>' + $('.'+classname).html());
}
</script>
HTML
<div class="secondframe">
<li class="msg"><span>Membership</span><div class="wid350">
<input type="text" id="membership" name="membership[]" value="<?php echo $row[Membership];?>" />
</div> </li>
<li class="msg"><span>Institution</span><div class="wid350">
<input type="text" id="institution2" name="institution2[]" value="<?php echo $row[Institution];?>" />
</div></li>
<li class="msg"><span>Date of Award</span>
<div class="wid350">
<input type="date" id="awarddate2" name="awarddate2[]"value="<?php echo $row[Award_date];?>" >
</div></li>
<li class="msg"><span>Country</span><div class="wid350">
<input type="text" id="country2" name="country2[]" value="<?php echo $row[Country];?>" />
</div></li>
<li class="heig30"></li>
</div>
<div class="addframe"></div>
<li class="msg">
<span> </span>
<div class="wid350 myright">
<button type="button" onClick="addmore('secondframe')">Add More</button>
</div>
</li>
文本框的内容是从mysql读取的,现在是点击button之后,不仅复制了所有节点,连节点中从数据库读取的数据都复制,我仅需要复制节点,不想要复制这些数据,应该怎么改