不换行 简单些td中加white-space: nowrap;就行了
换行如下:
<table style="table-layout:fixed;" width='100%'>
<tr>
<td width=50>asdasd</td>
<td width="100%" style="word-wrap : break-word;word-break: break-all; overflow:hidden; ">abcdefghigklmnopqrstuvwxyz1234567890abcdefghigklmnopqrstuvwxyz1234567890abcdefghigklmnopqrstuvwxyz1234567890abcdefghigklmnopqrstuvwxyz1234567890abcdefghigklmnopqrstuvwxyz1234567890abcdefghigklmnopqrstuvwxyz1234567890abcdefghigklmnopqrstuvwxyz1234567890</td>
</tr>
</table>