这个正则中的m怎么不好使！

craboy1 2009-03-12 02:25:43

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craboy1 2009-03-13

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没得罪大家吧！怎么不回答我提问题呀！多少顶一下！我也好把分给了呀！

本文详细解读正则表达式中的修饰符re.I（忽略大小写）、re.M（多行模式）和re.S（.匹配换行），并通过实例演示了它们在实际应用中的作用。通过查找字符串中的'hello world'，展示了不同修饰符如何改变匹配结果。

本文讨论了在使用正则表达式处理HTML时遇到的问题，特别是如何正确去除HTML标签并保留所需内容。通过示例，解释了在C++中使用正则表达式去除``标签及其内容的方法，以及<em>正则</em><em>中</em>的基本文法、小括号、<em>中</em>括号和大括号的含义。同时，提到了<em>正则</em><em>中</em>的或运算（|）在不同上下文<em>中</em>的应用。</a></div><div data-report-view="{"mod":"popu_645","index":"3","dest":"https://blog.csdn.net/w116858389/article/details/135406455","strategy":"2~default~ElasticSearch~Rate","extra":"{\"utm_medium\":\"distribute.pc_relevant_bbs_down_v2.none-task-blog-2~default~ElasticSearch~Rate-3-135406455-bbs-300119970.264^v3^pc_relevant_bbs_down_cate\",\"dist_request_id\":\"1781389676922_50340\"}","spm":"1035.2023.3001.6557"}" class="list-item" data-v-ca2d15ac><div class="recommend-title" data-v-ca2d15ac><img 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