实现功能要求：
** 通过点击任意一tr中的a#click得出该tr中指定的td中内容 **

html代码

<table id="history_income_list">
  <tr class="active">
    <th>句段</th>
    <th class="yuanwen">原文栏</th>
    <th>状态</th>
    <th class="yiwen">译文栏</th>
    <th class="yiwen">翻译</th>
 </tr>
    {% for f,y in wenjian %}
      <tr data-uid={{forloop.counter}}>
        <td>{{forloop.counter}}</td>
        <td id="yuanwen" class="yuanwen" name="yuanwen">{{f.yuanwen}}</td>
        <td>√</td>
        <td id="yiwen" class="yiwen" style="text-align: left;">
        <div class="textarea" id="yiwen_show" contenteditable="true">{{y.yiwen}}</div> </td>
        <td>
           <a href="javascript:void(0);" id="click">百度翻译</a>
           <a href="javascript:void(0);" id="g{{forloop.counter}}">搜狗翻译</a>
        </td>
      </tr>
   {% endfor %}
</table>

JS代码

<script type="text/javascript">
    $("a#click").click(function(){
        var i= $(this).parent('td').parent('tr').data('uid');
        console.log("第"+i+"行")
        var query = $("tr:eq("+i+")").children().eq(3).text()
        console.log("获取当前点击的tr的第3个td文本："+query)
        var yiwen = $("tr:eq("+i+")").children().eq(6).text()
        console.log("获取当前点击的tr的第6个td文本："+yiwen)
</script>