将文本文件中重复的单词写入另一个文本文件

Question

我正在尝试写一个函数，它可以读取一个文本文件，然后把重复的单词只输入一次到另一个文本文件里。问题是，这段代码只输出了最后一行的重复单词。

import string 

 def repeat_words(in_file, out_file):
     file_in = open(in_file, "r")
     file_out = open(out_file, "w")
     for lines in file_in:
     words = lines.lower().split()
     seen_words = []
     repeat_words = [] 
        for word in words:
            word = word.strip(string.punctuation)
            if word in seen_words and word not in repeat_words:
                repeat_words.append(word)
            seen_words.append(word)
   
 file_out.write(' '.join(repeat_words) + '\n')
 file_in.close()
 file_out.close()

inF = "nnn.txt"
OutF = "Untitled-1.txt"
repeat_words(inF, OutF)

Answer 1

我想写一个函数，它可以读取一个文本文件，然后把重复的单词只输入一次到另一个文本文件里。

你的代码有点不太清楚。

如果你想从文件A中提取重复的单词，并把它们写入文件B，可以试试下面的代码。

import string 

def repeat_words(in_file, out_file):
    with open(in_file, "r") as file_in, open(out_file, "w") as file_out :
        seen_words = set()
        repeated_words = []
        for line in file_in.readlines():
            words = line.split()
            for word in words:
                word = word.lower().strip(string.punctuation)
                if word in seen_words and word not in repeat_words:
                    repeated_words.append(word)
                seen_words.add(word)
                
        file_out.write(' '.join(repeat_words))


inF = "nnn.txt"
OutF = "Untitled-1.txt"
repeat_words(inF, OutF)