检查文本文件python中是否存在单词 [英] checking if word exists in a text file python

问题描述

我正在使用 Python，我正在尝试找出文本文件中是否包含某个单词.我正在使用此代码，但它总是打印找不到单词"，我认为该条件存在一些逻辑错误，如果您可以更正此代码，请任何人:

I'm working with Python, and I'm trying to find out if a word is in a text file. i am using this code but it always print the "word not found", i think there is some logical error in the condition, anyone please if you can correct this code:

file = open("search.txt")
    print(file.read())
    search_word = input("enter a word you want to search in file: ")
    if(search_word == file):
        print("word found")
    else:
        print("word not found")

推荐答案

最好在打开文件时习惯使用 with，以便在完成后自动关闭.但主要是使用 in 在另一个字符串中搜索一个字符串.

Better you should become accustomed to using with when you open a file, so that it's automatically close when you've done with it. But the main thing is to use in to search for a string within another string.

with open('search.txt') as file:
    contents = file.read()
    search_word = input("enter a word you want to search in file: ")
    if search_word in contents:
        print ('word found')
    else:
        print ('word not found')

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