2012-03-25 130 views
1

我不是正則表達式的專家,因此我很難將此正則表達式模式轉換爲Java。將C#.Net正則表達式轉換爲Java正則表達式模式

我相信這對一個熟悉Regex的人來說是一件容易的事。 我也有類似的主題,但是 - 每個主題相關的特定正則表達式模式...

的模式是:提前

@"\<meta name=""title"" content=""(?<title>.*)""\>" 

謝謝!

+0

我在那裏看到的唯一有趣的事情就是雙引號。取消前面的「@」,不加雙引號,而是轉義它們(用反斜槓)。 – mpen 2012-03-25 17:57:41

+0

我是這麼做的。我不只是複製粘貼到Java ...我刪除了'@',並將特殊字符改爲\ *(例如\「而不是\」和\\而不是\),但我得到一個異常這是不是一個有效的正則表達式模式 – 2012-03-25 18:00:04

+2

它可能是命名的捕獲。我不能找到任何直接的答案,如果Java支持它們,請嘗試把它取出來用'(。*)'替換'(?。*)'編輯:其實,顯然Java7沒有,但事先http://stackoverflow.com/a/415635/65387) – <span class="text-secondary"> <small> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/65387/">mpen</a></span> <span>2012-03-25 18:06:38</span> </small> </span> </p> </div> </div> </div> </div> </div> </article> </div> <div class="answer-title"> <span class="text-logo margin-top-sm">A</span> <h2 class="title h4">回答</h2> </div> <div class="item-description text-md markdown-body margin-bottom-40 voidso"> <article class="board-top-1 padding-top-10"> <div class="post-col vote-info"> <span class="count">1<i class="fa fa-thumbs-up"></i></span> <i class="fa fa-check fa-2x"></i> </div> <div class="post-offset"> <div class="answer fmt"> <p>如果你想斜線在開通的前閉角型支架,使用(轉義爲Java):</p> <pre><code class="prettyprint-override">"\\\\<meta name=\"title\" content=\"(.*)\"\\\\>" </code></pre> <p>沒有他們,使用此:</p> <pre><code class="prettyprint-override">"<meta name=\"title\" content=\"(.*)\">" </code></pre> <p><a href="http://fiddle.re/ryjn" rel="nofollow">Tested here</a>使用非轉義版本:</p> <pre><code class="prettyprint-override"><meta name="title" content="(.*)"> </code></pre> </div> <div class="post-info"> <div class="post-meta row"> <p class="text-secondary col-lg-6"> <span class="source"> <a rel="noopener" target="_blank" href="https://stackoverflow.com/q/9862566">來源</a> </span> </p> <p class="text-secondary col-lg-6"> <span class="float-right date"> <span>2012-03-25 17:59:26</span> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/65387/">mpen</a></span> </p> <p class="col-12"></p> <p class="col-12"></p></div> </div> <!-- comments --> <div class="comments"> <div itemprop="comment" class="post-comment"> <div class="row"> <div class="col-lg-1"><span class="text-secondary">+0</span></div> <div class="col-lg-11"> <p class="commenttext">我已經嘗試過,並得到一個異常。只是可以肯定,我已經在http://正則表達式.powertoy.org/as-well,並得到了否定的結果。 – <span class="text-secondary"> <small> <span>2012-03-25 18:08:12</span> </small> </span> </p> </div> </div> </div> <div itemprop="comment" class="post-comment"> <div class="row"> <div class="col-lg-1"><span class="text-secondary">+0</span></div> <div class="col-lg-11"> <p class="commenttext">@NatiCohen:再次更新。 – <span class="text-secondary"> <small> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/65387/">mpen</a></span> <span>2012-03-25 18:11:10</span> </small> </span> </p> </div> </div> </div> </div> </div> </article> <div> <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6208739752673518" data-ad-slot="1038284119" data-ad-format="auto" data-full-width-responsive="true"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div> </div> <div class="clearfix"> </div> <div class="relative-box"> <div class="relative">相關問題</div> <ul class="relative_list"> <li> 1. 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