刪除一些單詞替換txt文件中的其他單詞

Question

我有一個包含許多文本行的txt文件（myText.txt）。

我想知道：

• 如何創建需要刪除（我想成立的話我自己）
• 如何創建單詞列表單詞的列表需要更換

舉例來說，如果myText.txt是：

The ancient Romans influenced countries and civilizations in the following centuries. 
Their language, Latin, became the basis for many other European languages. They stayed in Roma for 3 month. 

• 我想刪除「的」「和」「中的」我想更換 「古」，由「老」
• 我想通過「年更換「月」和「百年」 「

Answer 1

你總是可以使用正則表達式：

import re 

st='''\ 
The ancient Romans influenced countries and civilizations in the following centuries. 
Their language, Latin, became the basis for many other European languages. They stayed in Roma for 3 month.''' 

deletions=('and','in','the') 
repl={"ancient": "old", "month":"years", "centuries":"years"} 

tgt='|'.join(r'\b{}\b'.format(e) for e in deletions) 
st=re.sub(tgt,'',st) 
for word in repl: 
    tgt=r'\b{}\b'.format(word) 
    st=re.sub(tgt,repl[word],st) 


print st 

Answer 2

這應該可以做到。您可以使用列表來存儲要刪除的對象，然後遍歷列表並從內容字符串中刪除列表中的每個元素。然後，您使用字典來存儲您現在擁有的單詞以及要替換它們的單詞。你也循環這些，用替換的替換當前的單詞。

def replace(): 
    contents = "" 
    deleteWords = ["the ", "and ", "in "] 
    replaceWords = {"ancient": "old", "month":"years", "centuries":"years"} 

    with open("meText.txt") as f: 
    contents = f.read() 
    for word in deleteWords: 
    contents = contents.replace(word,"") 

    for key, value in replaceWords.iteritems(): 
    contents = contents.replace(key, value) 
    return contents 

Answer 3

使用列表刪除和字典進行更換。它應該是這個樣子：

def processTextFile(filename_in, filename_out, delWords, repWords): 


    with open(filename_in, "r") as sourcefile: 
     for line in sourcefile: 
      for item in delWords: 
       line = line.replace(item, "") 
      for key,value in repWords.items(): 
       line = line.replace(key,value) 

      with open(filename_out, "a") as outfile: 
       outfile.write(line) 



if __name__ == "__main__": 
    delWords = [] 
    repWords = {} 

    delWords.extend(["the ", "and ", "in "]) 
    repWords["ancient"] = "old" 
    repWords["month"] = "years" 
    repWords["centuries"] = "years" 

    processTextFile("myText.txt", "myOutText.txt", delWords, repWords) 

剛一說明，這是爲Python 3.3.2編寫的，爲什麼我使用的項目是（）。如果使用Python 2.x，請使用iteritems（），因爲我認爲它更有效，尤其是對於大型文本文件。