第一张太乱，做的第二张图。代码如下：
<html>
<head>
<title>图2</title>
<head>
<body>
<table border="1" width="500" height="600">
<tr>
<td rowspan="3">A1<br/>B1<br/>C1</td> <td colspan="2">A2A3</td> <td colspan="3">A4A5A6</td>
</tr>
<tr>
<td rowspan="2">B2<br/>C2</td> <td colspan="4">B3B4B5B6</td>
</tr>
<tr>
<td colspan="2">C3C4</td> <td colspan="2">C5C6</td>
</tr>
</table>
</body>
<html>
<html>
<head>
<title>图2</title>
<head>
<body>
<table border="1" width="500" height="600">
<tr>
<td rowspan="3">A1<br/>B1<br/>C1</td> <td colspan="2">A2A3</td> <td colspan="3">A4A5A6</td>
</tr>
<tr>
<td rowspan="2">B2<br/>C2</td> <td colspan="4">B3B4B5B6</td>
</tr>
<tr>
<td colspan="2">C3C4</td> <td colspan="2">C5C6</td>
</tr>
</table>
</body>
<html>
