怎么实现这样的table效果？？？请指教

Question

<TD colspan="2"></TD>        横向合并
<TD rowspan="2"></TD>        竖向合并

Answer 1

<style>
td{width:50}
</style>
<table border>
<tr>
<td>任务</td>
<td>类别</td>
<td>人员</td>
<td>时间</td>
<td>时间</td>
<td>时间</td>
</tr>
<tr>
<td rowspan=2>&nbsp;</td>
<td rowspan=2>&nbsp;</td>
<td rowspan=2>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
<Td>&nbsp;</td>
<td>&nbsp;</td>
</tr></table>

Answer 2

虚线效果在IE5.5+上才支持,IE5.0就得另想办法了

Answer 3

也可以
<table border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td width="50%"><input type="text" name="T1" size="20" readonly style="border-style: dotted; border-width: 1" value="AAAA"></td>
    <td width="50%"><input type="text" name="T1" size="20" readonly style="border-style: dotted; border-width: 1" value="BBBBB"></td>
  </tr>
  <tr>
    <td width="50%"><input type="text" name="T1" size="20" style="border-style: dotted; border-width: 1"></td>
    <td width="50%"><input type="text" name="T1" size="20" style="border-style: dotted; border-width: 1"></td>
  </tr>
</table>