[英]How do I search for contents of a line in a text file, replace the line, and save as a new file?
[英]How do I replace a text file's contents with another if they are different?
如果一個文本文件不相同,我希望用另一個文本文件的內容替換它們。
每當我運行此腳本時,“['”和“']”都會添加到 old_text.txt 文件中,這意味着它永遠不會與 new_text.txt 文件匹配。
如何刪除這些字符,以便在運行此腳本后 .txt 文件具有完全相同的內容?
old_text = open('old_text.txt', 'r+')
new_text = open('new_text.txt', 'r+')
old_text_compare = str(old_text.readlines())
new_text_compare = str(new_text.readlines())
if old_text_compare != new_text_compare:
print("difference")
old_text = open('old_text.txt', 'w')
old_text.write(str(new_text_compare))
else:
print("no difference")
如果要直接比較文件內容,請使用.read()
而不是.readlines()
with open('old_text.txt', 'r+') as f1, open('new_text.txt', 'r+') as f2:
old = f1.read()
new = f2.read()
if old != new:
with open('new_text.txt', 'w') as f1:
f1.write(old)
else:
print("no difference")
您想直接比較行列表,如下所示:
if old_text.readlines() != new_text.readlines():
...
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