<table width="50">
<tr>
<td width="50" style="WORD-WRAP: break-word;TABLE-LAYOUT: fixed">xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx</td>
</tr>
</table>//不会换行
2。
<table width="50">
<tr>
<td width="50">我我我我我我我我我我我我我我我我我我我我我我我我</td>
</tr>
</table>//
<tr>
<td width="50" style="WORD-WRAP: break-word;TABLE-LAYOUT: fixed">xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx</td>
</tr>
</table>//不会换行
2。
<table width="50">
<tr>
<td width="50">我我我我我我我我我我我我我我我我我我我我我我我我</td>
</tr>
</table>//
<tr>
<td width="50" style=" WORD-WRAP: break-word">
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx</td>
</tr>
加两个样是就可以了