删除两个正则表达式之间的特殊字符分隔符

Question

s = '^^^@ """@$ raw data &*823ohcneuj^^^ Important Information ^^^raw data^^^ Imp Info' 

其中，我想删除分隔符^^^和^^^之间的文本。

输出应该是“重要信息进出口信息”

Answer 1

你可以用正则表达式做到这一点：

import re 
s = '^^^@ """@$ raw data &*823ohcneuj^^^ Important Information ^^^raw data^^^ Imp Info' 
important = re.compile(r'\^\^\^.*?\^\^\^').sub('', s) 

在这个正则表达式的关键要素是：

1. 逃脱^特点，因为它有特殊的含义
2. 使用非官方匹配的.*?

Answer 2

def removeText(text): 
    carrotCount = 0 
    newText = "" 
    for char in text: 
      if(char == '^'): 
       # Reset if we have exceeded 2 sets of carrots 
       if(carrotCount == 6): 
         carrotCount = 1 
       else: 
        carrotCount += 1 
      # Check if we have reached the first '^^^' 
      elif(carrotCount == 3): 
       # Ignore everything between the carrots 
       if(char != '^'): 
        continue; 
       # Add the second set of carrots when we find them 
       else: 
        carrotCount += 1 
      # Check if we have reached the end of the second ^^^ 
      # If we have, we have the message 
      elif(carrotCount == 6): 
       newText += char 
     return newText 

这将打印 “重要信息进出口信息。”