正则表达式 - 我需要找到一些东西然后复制它之后的东西

4 回答

• -1

  你可以试试这个

  <A NAME=\d+\.\d+\.\d+>(.*)(?=</A>)
  

  Explanation

  • <A NAME=\d+\.\d+\.\d+> - 会匹配这样的东西 <A NAME=1.1.112>

  • (.*) - 匹配除换行零或更多时间以外的任何内容 .

  • (?=</A>) - 积极向前看 . 匹配 </A> .

  Demo

  回复于 2024-04-20T06:12:03+08:00
• 0

  使用正则表达式解析HTML / XML / JSON就像编写质量差的代码一样 . HTML可能包含重复的嵌套结构，在使用正则表达式进行语法分析时可能会导致意外结果 .

  您可以在python中使用 Beautiful Soup 库并解析给定的HTML以提取所需的输出 .

  这是一个使用 Beautiful Soup 的示例python代码

  import re
  from bs4 import BeautifulSoup
  
  data = """<A NAME=speech26><b>SIR HUGH EVANS</b>
  </a><blockquote>
  <A NAME=1.1.58>Shall I tell you a lie? I do despise a liar as I do</A><br>
  <A NAME=1.1.59>despise one that is false, or as I despise one that</A><br>
  <A NAME=1.1.60>is not true. The knight, Sir John, is there; and, I</A><br>
  <A NAME=1.1.61>beseech you, be ruled by your well-willers. I will</A><br>
  <A NAME=1.1.62>peat the door for Master Page.</A><br>
  <p><i>Knocks</i></p>
  <A NAME=1.1.63>What, hoa! Got pless your house here!</A><br>
  </blockquote>"""
  
  soup = BeautifulSoup(data)
  
  for aTag in soup.find_all('a', {'name': re.compile(r'\d+\.\d+\.\d+')}):
   print(aTag.get_text())
  

  根据需要提供以下输出，

  Shall I tell you a lie? I do despise a liar as I do
  despise one that is false, or as I despise one that
  is not true. The knight, Sir John, is there; and, I
  beseech you, be ruled by your well-willers. I will
  peat the door for Master Page.
  What, hoa! Got pless your house here!
  

  注意，我've used regex here as well, but in a limited space, just to tell I am interested in all ' a'标签，其中 name 属性的值属于此 \d+\.\d+\.\d+ 模式 .

  回复于 2024-04-20T06:12:03+08:00
• -1

  你可以尝试下面的代码 .

  text = """<A NAME=speech26><b>SIR HUGH EVANS</b>
  </a><blockquote>
  <A NAME=1.1.58>Shall I tell you a lie? I do despise a liar as I do</A><br>
  <A NAME=1.1.59>despise one that is false, or as I despise one that</A><br>
  <A NAME=1.1.60>is not true. The knight, Sir John, is there; and, I</A><br>
  <A NAME=1.1.61>beseech you, be ruled by your well-willers. I will</A><br>
  <A NAME=1.1.62>peat the door for Master Page.</A><br>
  <p><i>Knocks</i></p>
  <A NAME=1.1.63>What, hoa! Got pless your house here!</A><br>
  </blockquote>"""
  
  output = re.findall(r'<A NAME=\d\.\d\.\d*>(.*?)(?=</A>)', text, re.MULTILINE|re.DOTALL)
  print(output)
  

  产量

  ['Shall I tell you a lie? I do despise a liar as I do', 'despise one that is false, or as I despise one that', 'is not true. The knight, Sir John, is there; and, I', 'beseech you, be ruled by your well-willers. I will', 'peat the door for Master Page.', 'What, hoa! Got pless your house here!']
  

  回复于 2024-04-20T06:12:03+08:00
• -1

  这是一个选项，使用 re.findall ：

  text = "<A NAME=1.1.58>Shall I tell you a lie? " # ... your input from above
  output = re.findall(r'<A NAME=\d+\.\d+\.\d+>(.*?)(?=</A>)', text, re.MULTILINE|re.DOTALL)
  print(output)
  
  ['Shall I tell you a lie? I do despise a liar as I do',
   'despise one that is false, or as I despise one that',
   'is not true. The knight, Sir John, is there; and, I',
   'beseech you, be ruled by your well-willers. I will',
   'peat the door for Master Page.',
   'What, hoa! Got pless your house here!']
  

  但请注意，通常使用正则表达式来解析HTML / XML内容并不是一件好事 . 如果您确定目标内容只会出现在上面显示的 <A> 标签类型之间，那么您可能会使用正则表达式 .

  回复于 2024-04-20T06:12:03+08:00