前言

本篇文章很短，就是记录一个偶然遇到的问题

问题复现

是这样的，在用xpath解析某网站的时候，由于网站数据格式是普通的html，而非json字符串，所以只能解析DOM对象，有的能用正则表达式的我都尽量用正则表达式了，没法用正则的我都用beautifulsoup库或者pyquery了，但是没法，通用型还是没法跟xpath比，而且我已经写好一版，在有限的时间改的话就很烦了

不多说，先看问题

首先部分的网站源码如下：

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                        <div class="_4g34"><h3 class="_52jd _52jb _52jh _5qc3 _4vc- _3rc4 _4vc-" data-gt='{"tn":"C"}'>
                            <span><strong><a href="/nba/?__tn__=C-R">NBA</a></strong><span aria-label="Verified Page"
                                                                                           class="_56_f _5dzy _5dz- _3twv"
                                                                                           id="u_0_e_x2"
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                            <div class="_52jc _5qc4 _78cz _24u0 _36xo" data-sigil="m-feed-voice-subtitle"><a
                                    href="/story.php?story_xxid=10159935560038463&id=8245623462&__tn__=-R"><abbr>6
                                hrs</abbr></a><span aria-hidden="true"> · </span><span><div class="_7jwi"><span
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                                                                  class="feedAudienceIcon img sp_eXcmc5QyINt_2x sx_e966fc"
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                                                  role="button"></a><i class="img sp_eXcmc5QyINt_2x sx_b9866d"
                                                                       data-sigil="story-popup-context-init"><u>More
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        <div class="_5rgt _5nk5 _5msi" data-ft='{"tn":"*s"}' data-gt='{"tn":"*s"}' style="">
            <div><span><p>Watch the BEST DEEP 3'S from the <a href="/LAClippers/?__tn__=%2As-R">L.A. Clippers</a> during the <a
                    class="_5ayv _qdx" href="/hashtag/nbaplayoffs?__tn__=%2As-R"><span class="_5aw4 _qdz">#</span><span
                    class="_5ayu">NBAPlayoffs</span></a>! </p><p> <a class="_5ayv _qdx"
                                                                     href="/hashtag/thatsgame?__tn__=%2As-R"><span
                    class="_5aw4 _qdz">#</span><span class="_5ayu">ThatsGame</span></a> <span class="_5mfr"><span
                    class="_6qdm"
                    style='height: 16px; width: 16px; font-size: 16px; background-image: url("https://static.xx.xxcdn.net/images/emoji.php/v9/tdf/2/16/1f4a5.png")'>