单线表格 cellpadding="0" cellspacing="0" style="border-collapse:collapse;"

<table width="300" border="1" cellpadding="0" cellspacing="0" bordercolor="#FF0000" style="border-collapse:collapse;">  
<tr>  
<td>dsfgdsgd</td>  
<td>asdfasdf</td>  
<td>asdfsadf</td>  
<td>asdfsadfsadf</td>  
</tr>  
<tr>  
<td>asdfsadf</td>  
<td>asdfasdf</td>  
<td>sadfsadf</td>  
<td>asdfsadfsa</td>  
</tr>  
<tr>  
<td>asdfsafsad</td>  
<td>asdfasdf</td>  
<td>asdfsadf</td>  
<td>sadfsadfs</td>  
</tr>  
</table>