所以我的问题是我已经将很多论坛帖子提取到单独的 txt 文件中，这些文件现在位于我的硬盘上。每个文件都包含我想要提取的信息，其中一些我已经弄清楚如何提取。我需要提取的信息格式如下：
在同一个“html块”内
1：（x）此线程中
的消息 2：消息是回复（一些 html 代码）A HREF =“链接”（一些 html 代码=
在任务 1 中只需要提取 x
在任务 2 中我需要提取消息回复的链接
我已经查看了不同的 tm 和 XML 包，但还没有真正找到要使用的内容。任何建议表示赞赏。
这是其中一个 txt 文件的样子
`<HTML>
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<TITLE>Dear LEGO : 5668 </TITLE>
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<A HREF="/dear-lego/">Dear LEGO</A> <FONT COLOR="#8899BB">/</FONT> 5668 <BR></FONT></BIG> </TD> <TD ALIGN=RIGHT><SMALL><FONT FACE="Geneva,Arial,Helvetica">
<A HREF="/dear-lego/?n=5667">5667</A> | <A HREF="/dear-lego/?n=5669">5669</A>
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<TD ALIGN=RIGHT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#7070A0" SIZE="-1">Subject: <BR></FONT></TD>
<TD ALIGN=LEFT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#333366" SIZE="-1"><BIG><BIG><B>Online PAB and Design-by-me needs more parts for Lego Train</B></BIG></BIG><BR></FONT></TD>
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<TD ALIGN=RIGHT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#7070A0" SIZE="-1">Author: <BR></FONT></TD>
<TD ALIGN=LEFT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#333366" SIZE="-1"><B>Benjamin Medinets</B><BR></FONT></TD>
</TR> <TR VALIGN=MIDDLE>
<TD ALIGN=RIGHT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#7070A0" SIZE="-1">Newsgroups: <BR></FONT></TD>
<TD ALIGN=LEFT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#333366" SIZE="-1"><A HREF="/dear-lego/">lugnet.dear-lego</A>, <A HREF="/trains/">lugnet.trains</A><BR></FONT></TD>
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<TD ALIGN=RIGHT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#7070A0" SIZE="-1">Followup-To: <BR></FONT></TD>
<TD ALIGN=LEFT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#333366" SIZE="-1"><A HREF="/trains/">lugnet.trains</A><BR></FONT></TD>
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<TD ALIGN=RIGHT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#7070A0" SIZE="-1">Date: <BR></FONT></TD>
<TD ALIGN=LEFT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#333366" SIZE="-1">Thu, 6 Oct 2011 03:44:44 GMT<BR></FONT></TD>
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<TD ALIGN=RIGHT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#7070A0" SIZE="-1">From: <BR></FONT></TD>
<TD ALIGN=LEFT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#333366" SIZE="-1"><FONT COLOR="#7070A0">Benjamin Medinets <bmedinets@excite.com+stopspammers+></FONT><BR></FONT></TD>
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<TD ALIGN=RIGHT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#7070A0" SIZE="-1">Highlighted: <BR></FONT></TD>
<TD ALIGN=LEFT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#333366" SIZE="-1"><FONT COLOR="#D57F7F"><B>!</B></FONT>
<A HREF="/news/ahh.cgi?lugnet.dear-lego,5668">(details)</A><BR></FONT></TD>
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<TD ALIGN=RIGHT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#7070A0" SIZE="-1">Viewed: <BR></FONT></TD>
<TD ALIGN=LEFT><FONT FACE="Geneva,Arial,Helvetica" COLOR="#333366" SIZE="-1">3013 times<BR></FONT></TD>
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<FONT FACE="Geneva,Arial,Helvetica" SIZE="-2"><A HREF="/news/raw.cgi?lugnet.dear-lego,5668">View Raw<BR>Message</A><BR><BR></FONT> <A HREF="/news/post/?lugnet.dear-lego,5668"><IMG BORDER=0 WIDTH=30 HEIGHT=44 HSPACE=10 VSPACE=10 SRC="/news/icon-reply.gif" TITLE="Post a public reply to this message"></A><BR> </TD> </TR></TABLE> </TD></TR>
<TR BGCOLOR="#F0F0F0"><TD ALIGN=LEFT NOWRAP><TT>I was using Lego Digital Designer and am disappointed the downhill availabilty<BR>
of certain important parts to build "buyable" models.<BR>
<BR>
I would like to see a return of "warehouse" sliding doors to make<BR>
box cars.<BR>
<BR>
Train-style doors would also be nice as well as train windows (both in<BR>
2x3 and 4x3)... please.<BR>
<BR>
I looked at the instructions to build a mail car from the 7722, and<BR>
found that I really only need 2 red sliding rail doors, the pair of<BR>
"decorated train doors" and a set of two 2x3 thin yellow train<BR>
windows.<BR>
<BR>
Yes, there was a bit of minor substitution but it is mostly distiguishable<BR>
as the model.<BR>
<BR>
Here is what it looks like:<BR>
<BR>
<A HREF="http://www.lugnet.com/jump.cgi?http://www.brickshelf.com/gallery/medib/lego-fun/7722mailvan.jpg">http://www.brickshelf.com/gallery/medib/lego-fun/7722mailvan.jpg</A><BR>
<BR>
Yeah I know... where are the f-in doors???<BR>
<BR>
<BR>
Ben<BR>
</TT>
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<B>1 Message in This Thread:</B><BR> <NOBR><IMG WIDTH=9 HEIGHT=11 VSPACE=2 SRC="/news/here.gif" TITLE="You are here"></NOBR><BR><NOBR></NOBR>
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<DD><B>Nested: </B>
<A HREF="/dear-lego/?n=5668&t=i&v=a">All</A> | <A HREF="/dear-lego/?n=5668&t=i&v=b">Brief</A> | <A HREF="/dear-lego/?n=5668&t=i&v=c">Compact</A> | <A HREF="/dear-lego/?n=5668&t=i&v=d">Dots</A>
<BR><B>Linear: </B>
<A HREF="/dear-lego/?n=5668&t=f&v=a">All</A> | <A HREF="/dear-lego/?n=5668&t=f&v=b">Brief</A> | <A HREF="/dear-lego/?n=5668&t=f&v=c">Compact</A>
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