将表格单元格分割成HTML中的两列

我有下表：

<table border="1">
  <tr>
    <th scope="col">Header</th>
    <th scope="col">Header</th>
    <th scope="col">Header</th>
  </tr>
  <tr>
    <th scope="row">&nbsp;</th>
    <td>&nbsp;</td>
    <td>Split this one into two columns</td>
  </tr>
</table>

而且我希望将包含“将其分成两列”的单元格拆分成两个单元格/列。我该怎么做？

Fiddle

解决方法

像这个 http://jsfiddle.net/8ha9e/1/

将colspan =“2”添加到第三个<然后在您的第二行有4 td。

<table border="1">
  <tr>
    <th scope="col">Header</th>
    <th scope="col">Header</th>
    <th scope="col" colspan="2">Header</th>
  </tr>
  <tr>
    <th scope="row">&nbsp;</th>
    <td>&nbsp;</td>
    <!-- The following two cells will appear under the same header -->
    <td>Col 1</td>
    <td>Col 2</td>
  </tr>
</table>