<tr>

<td>a</td>

<td>上海市</td>

<td>市辖区</td>

<td>2014-05-30</td>

<td>2014-05-31</td>

<td>2219</td>

<td>0</td>

<td>

<a id = "queryBtn" data-id = "a" class = "action-btn">查看</a>

</td>

</tr>

jquery知道a标签如何查找a标签对应的上一级tr标签，并设置其背景颜色

 $(“＃queryBtn”).parents('tr:first').css({backgroundColor:'#d1eac8'});