我想用正则表达式把 <td ..class= "td1 "> 的内容找出来
<table>
<tr>
<td width= "130 " align= "center " class= "td1 "> asdgd1 </td>
<td width= "130 " align= "center " class= "td1 "> asdgd1 </td>
<td width= "130 " align= "center " class= "td1 "> asdgd1 </td>
<td width= "130 " align= "center " class= "td1 "> asdgd1 </td>
</tr>
<tr>
<td width= "130 " align= "center " class= "td1 "> asdgd2 </td>
<td width= "130 " align= "center " class= "td1 "> asdgd2 </td>
<td width= "130 " align= "center " class= "td1 "> asdgd2 </td>
<td width= "130 " align= "center " class= "td1 "> asdgd2 </td>
</tr>
</table>
<table>
<tr>
<td width= "130 " align= "center " class= "td1 "> asdgd1 </td>
<td width= "130 " align= "center " class= "td1 "> asdgd1 </td>
<td width= "130 " align= "center " class= "td1 "> asdgd1 </td>
<td width= "130 " align= "center " class= "td1 "> asdgd1 </td>
</tr>
<tr>
<td width= "130 " align= "center " class= "td1 "> asdgd2 </td>
<td width= "130 " align= "center " class= "td1 "> asdgd2 </td>
<td width= "130 " align= "center " class= "td1 "> asdgd2 </td>
<td width= "130 " align= "center " class= "td1 "> asdgd2 </td>
</tr>
</table>
------解决方案--------------------------------------------------------
windstore(雪海飄香) 的正则进步很快，再注意一些细节，我就可以卸甲归田了
<td[\S\s]+? 这里的[\S\s]+?用不会产生歧义的贪婪匹配[^> ]*会提高效率
字符串前加了@，用 " "对 "进行转义即可，不需要再加\
(? <content> [\S\s]+?) 这里也是，视需求而定，如果这里不出现“ <”字符，可以用[^ <]*，否则用[\s\S]*?好一些，因为有时候可能是 <td...> </td> 这种空字符的情况