正则表达式难题！！！
如何获取一段html中包含特定字符的某个标签对！
如：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN ">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME= "Generator " CONTENT= "EditPlus ">
<META NAME= "Author " CONTENT= " ">
<META NAME= "Keywords " CONTENT= " ">
<META NAME= "Description " CONTENT= " ">
</HEAD>
<BODY>
<TABLE>
<TR>
<TD> asdf </TD>
<TD> asdf </TD>
</TR>
<TR>
<TD> #asdf </TD>
<TD> asdf </TD>
</TR>
<TR>
<TD> sdf </TD>
<TD> asdf </TD>
</TR>
<TR>
<TD> sdf </TD>
<TD> asdf </TD>
</TR>
</TABLE>
</BODY>
</HTML>
我要获取
<TR>
<TD> #asdf </TD>
<TD> asdf </TD>
</TR>
[解决办法]
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN "> <HTML> <HEAD> <TITLE> New Document </TITLE> <META NAME= "Generator " CONTENT= "EditPlus "> <META NAME= "Author " CONTENT= " "> <META NAME= "Keywords " CONTENT= " "> <META NAME= "Description " CONTENT= " "> </HEAD> <BODY> <TABLE> <TR> <TD> asdf </TD> <TD> asdf </TD> </TR> <TR> <TD> #asdf </TD> <TD> asdf </TD> </TR> <TR> <TD> sdf </TD> <TD> asdf </TD> </TR> <TR> <TD> sdf </TD> <TD> asdf </TD> </TR> </TABLE> </BODY> </HTML> <script>window.onload=function(){ var obj=document.body; alert(obj.innerHTML.match(/<tr(?![^#]+<\/tr>)[#\s\S]*?<\/tr>/gim));}</script>