jQuery中内容过滤器简单用法示例

<script language="javascript" src="JS/jquery-3.1.1.min.js"></script>
<table width="98%" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#3F873B">
 <tr>
 <td width="11%" height="27">编号</td>
 <td width="14%">祝福对象</td>
 <td width="12%">祝福者</td>
 <td width="33%">字条内容</td>
 <td width="30%">发送时间</td>
 </tr>
 <tr>
 <td height="27">1</td>
 <td>琦琦</td>
 <td>妈妈</td>
 <td>愿你健康快乐的成长！</td>
 <td>2011-07-05 13:06:06</td>
 </tr>
 <tr>
 <td height="27">1</td>
 <td>wgh</td>
 <td>爸爸</td>
 <td>愿你健康快乐的成长！</td>
 <td>2011-07-05 13:06:06</td>
 </tr>
 <tr>
 <td height="27">1</td>
 <td>花花</td>
 <td>wgh</td>
 <td>愿你健康快乐的成长！</td>
 <td>2011-07-05 13:06:06</td>
 </tr>
  <tr>
 <td height="27">1</td>
 <td>科科</td>
 <td>wgh</td>
 <td></td>
 <td>2011-07-05 13:06:06</td>
 </tr>
</table>
<script type="text/javascript">
  $(document).ready(function() {
   $("td:parent").css("background-color","#E8F3D1");  //为不为空的单元格设置背景颜色
   $("td:empty").html("暂无内容");         //为空的单元格添加默认内容
   $("td:contains('wgh')").css("color","red");     //将含有文本wgh的单元格的文字颜色设置为红色
  });
</script>