这样还行?
<table width="200" border="1" cellspacing="2" cellpadding="0">
<tr>
<td>
<div style=" width:96px; height:64px;overflow:auto">dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br></div>
</td>
</tr>
</table>
<table width="200" border="1" cellspacing="2" cellpadding="0">
<tr>
<td>
<div style=" width:96px; height:64px;overflow:auto">dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br>dsfsdf<br></div>
</td>
</tr>
</table>
div{width:300px;height:200px;overflow-y:scroll;background-color:red}
</style>
<body>
<div>
<table>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
<tr><td>AAAAAAAAA</td></tr>
</table>
</div>
</body>