> 跨行
<html> <body> <table width="100%" border="1"> <tr> <th>col1</th> <th>col2</th> <th>col3</th> <th>col4</th> </tr> <tr> <td rowspan="2">row1_col1</td> <td rowspan="2">row1_col2</td> <td>1111</td> <td>1111</td> </tr> <tr> <td>2222</td> <td>2222</td> </tr> </table> </body> </html>
> 跨列
<html>
<body>
<table width="100%" border="1">
<tr>
<th>col1</th>
<th>col2</th>
<th>col3</th>
<th>col4</th>
</tr>
<tr>
<td colspan="2">row1</td>
<td colspan="2">row1</td>
</tr>
<tr>
<td>1111</td>
<td>1111</td>
<td>2222</td>
<td>2222</td>
</tr>
<tr>
<td>1111</td>
<td>1111</td>
<td>2222</td>
<td>2222</td>
</tr>
</table>
</body>
</html>
原文：http://www.cnblogs.com/mr-yang-localhost/p/6688158.html