Question

我是一个非常新的Python

如果有重复的话，我想改变句子。

更正

实施例。 “这真是太好了” - ＆gt; “这真是太好了”
实施例。 “这只是” - ＆gt; “这只是”

现在我正在使用此注册表。但它完全改变了字母。防爆。 “我的朋友和我很开心” - ＆gt; “我的朋友很开心”（它删除了“我”和空格）错误

text = re.sub(r'(\w+)\1', r'\1', text) #remove duplicated words in row

如何进行相同的更改，而不是字母，它必须检查单词？

Answer 1

使用itertools.groupby的非正则表达式解决方案：

>>> strs = "this is just is is"
>>> from itertools import groupby
>>> " ".join([k for k,v in groupby(strs.split())])
'this is just is'
>>> strs = "this just so so so nice" 
>>> " ".join([k for k,v in groupby(strs.split())])
'this just so nice'

Answer 2

text = re.sub(r'\b(\w+)( \1\b)+', r'\1', text) #remove duplicated words in row

\b匹配空字符串，但只匹配单词的开头或结尾。

Answer 3

\b：匹配词边界
\w：任意单词字符

\1：用找到的第二个单词替换匹配项

  import re


  def Remove_Duplicates(Test_string):
      Pattern = r"\b(\w+)(?:\W\1\b)+"
      return re.sub(Pattern, r"\1", Test_string, flags=re.IGNORECASE)


  Test_string1 = "Good bye bye world world"
  Test_string2 = "Ram went went to to his home"
  Test_string3 = "Hello hello world world"
  print(Remove_Duplicates(Test_string1))
  print(Remove_Duplicates(Test_string2))
  print(Remove_Duplicates(Test_string3))

结果：

    Good bye world
    Ram went to his home
    Hello world

python正则表达式删除重复的单词

3 个答案: