表格标签的常用属性，表格的合并，表格的嵌套。

表格标签的常用属性：

<!--
table常用属性：border指定边框；width指定宽度；height指定高度;bgcolor指定背景颜色;align对齐方式；
tr标签:代表行
td标签:代表列
-->
<table border="1px" width="400px" bgcolor="beige" align="center">
<tr bgcolor="blue" align="center">
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
</tr>
<tr>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
<td>1</td>
</tr>

</table>

表格的合并：

<!--表格的合并
列合并用：colspan,合并几列就给合并的那一列后面赋值几，占掉谁的格子就需要把谁删掉
行合并用：rowspan，合并几行就给合并的那一行后面赋值几,占掉谁的格子就需要把谁删掉
-->
<table border="1px" width="400px" height="1px">
<tr>
<td colspan="2">2</td>

<td>2</td>
<td>2</td>
</tr>
<tr>
<td>2</td>
<td>2</td>
<td>2</td>
<td rowspan="3">2</td>
</tr>
<tr>
<td>2</td>
<td>2</td>
<td>2</td>

</tr>
<tr>
<td>2</td>
<td>2</td>
<td>2</td>


</tr>
</table>

表格的嵌套：

<table border="1px" width="400px" height="1px">
<tr>
<td colspan="2">2</td>

<td>2</td>
<td>2</td>
</tr>
<tr>
<td>2</td>
<td>2</td>
<td>2</td>
<td rowspan="4">
<table border="1px" width="100%" height="1px">
<tr>
<td>3</td>
<td>3</td>
<td>3</td>
<td>3</td>
</tr>
<tr>
<td>3</td>
<td>3</td>
<td>3</td>
<td>3</td>
</tr>
<tr>
<td>3</td>
<td>3</td>
<td>3</td>
<td>3</td>
</tr>
<tr>
<td>3</td>
<td>3</td>
<td>3</td>
<td>3</td>
</tr>
</table>
</td>

</tr>
<tr>
<td>2</td>
<td>2</td>
<td>2</td>

</tr>
<tr>
<td>2</td>
<td>2</td>
<td>2</td>


</tr>
<tr>
<td>2</td>
<td>2</td>
<td>2</td>

</tr>
</table>