如何从文件中删除单词

Question

如何从 python 中的 my.txt 文件中删除单词 我有一个电影列表，我想删除我最近使用的电影我该怎么做？

movies = ["Shark Tales", "Dead poet's society"]
movie = random.choice(movies)

print("I am gonna watch "+movie)

with open("topics.txt", "w") as f:
  f.remove(movie)
  f.close

我希望程序从文件中删除我指定的电影，以便下次读取时不再选择电影。

Answer 1

要从文本文件中删除特定项目，您需要将文件内容作为列表读取，修改列表以排除所需项目，然后将更新后的列表写回文件：

import random

movies = ["Shark Tales", "Dead poet's society"]
movie = random.choice(movies)

print("I am gonna watch " + movie)

# Read the contents of the file into a list
with open("topics.txt", "r") as f:
    movies = f.read().splitlines()

# Remove the movie
movies.remove(movie)

# Write the updated list back to the file
with open("topics.txt", "w") as f:
    f.write('\n'.join(movies))

Answer 2

如此处所述如何删除文件中的特定行？ :

movies = ["Shark Tales", "Dead poet's society"]
movie = random.choice(movies)
movies.remove(movie)

print("I am gonna watch "+movie)

with open("topics.txt", "r") as f:
    lines = f.readlines()
with open("topics.txt", "w") as f:
    for line in lines:
        if line.strip("\n") != movie:
            f.write(line)