想匹配html = <div class="back fl"><a href="javascript:void(0);" onclick="_gaq.push([‘_trackEvent‘,‘function‘, ‘onclick‘, ‘blog_articles_shangyipian‘]);location.href=‘/u012582664/article/details/56845037‘;"><span><i class="fa fa-arrow-left"></i></span><em>安裝最新版python</em></a></div><div class="forward fr"><a href="javascript:void(0);" onclick="_gaq.push([‘_trackEvent‘,‘function‘, ‘onclick‘, ‘blog_articles_xiayipian‘]);location.href=‘/u012582664/article/details/59120585‘;"><em>各種數據庫的註釋</em><span><i class="fa fa-arrow-right"></i></span></a></div>

pattern_l = r‘‘‘<a href="javascript:void(0);" onclick="_gaq.push([‘_trackEvent‘,‘function‘, ‘onclick‘, ‘blog_articles_shangyipian‘]);location.href=‘(.+?)‘;">‘‘‘
re.findall(pattern_l,html)

結果不成功。返回為空，有用：

 soup = BeautifulSoup(html, "lxml")
        print(soup.find_all(onclick="_gaq.push([‘_trackEvent‘,‘function‘, ‘onclick‘, ‘blog_articles_shangyipian‘]);location.href=‘/u012582664/article/details/(.+?)‘;"))
        
 

還是返回空，請教各位怎麽寫才行，是哪裏出了問題

python 字符串匹配問題