你可以简单地使用
$.map
结合
nth-child
选择器:
jQuery(function($) {
const result = $.map($('.m-s-3 td:nth-child(3)'), td => $(td).text().trim());
console.log(result);
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr class="m-s-3">
<td>A</td>
<td>B</td>
<td>20</td>
<td>D</td>
</tr>
<tr class="m-s-3">
<td>A</td>
<td>B</td>
<td>
<span>44</span>
</td>
<td>D</td>
</tr>
<tr class="m-s-3">
<td>A</td>
<td>B</td>
<td>55</td>
<td>D</td>
</tr>
</table>
