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HTML中表头和单元格的合并

2012-10-09 06:02:14| 分类：博客技巧 | 标签： |举报 |字号大中小订阅

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HTML中表头和单元格的合并

在HTML中，怎样去进行表头和单元格的合并那，可以通过以下代码进行完成：

<table border="1">
<tr>
<th>Column 1 heading</th>
<th>Column 2 heading</th>
<th>Column 3 heading</th>
</tr>
<tr>
<td>Row 2, cell 1</td>
<td colspan="2">Row 2, cell 2, also spanning Row 2, cell 3</td>
</tr>
<tr>
<td rowspan="2">Row 3, cell 1, also spanning Row 4, cell 1</td>
<td>Row 3, cell 2</td>
<td>Row 3, cell 3</td>
</tr>
<tr>
<td>Row 4, cell 2</td>
<td>Row 4, cell 3</td>
</tr>
</table>

首先，我们在第一行中用td标签取代了th标签。td是标准的数据单元格，th是单元格表头。像td标签一样，这些th标签也要用在tr标签里边。

在一些td标签中，我们用到了colspan和rowspan属性。在浏览器中查看，你会发现，在第二行中两个单元格代替了三个，第二个单元格横跨了两列。colspan属性，意即“列跨越”，将会跨越指定数目的单元格。就是说，在这个例子中不再需要第三个td标签──两个单元格个已经合并成一个。rowspan属性跟colspan属性类似，它将跨越行。在这个例子中，因为它跨越了四行，这一行只有两个单元格。

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