循环遍历文件中.txt字符串，如果字符 = 'X'则插入换行符

Question

问题：我有一个.txt文件，其中的字符串如下：

Q. Going back to July who all lived with you? 9 A. Ten people. 10 Q. Okay. So for the year, you had ten people living with you? 13 A. Yes.
Q. Going back to July who all lived with you? 9 A. Ten people. 10 Q. Okay. So for the year, you had ten people living with you? 13 A. Yes.
Q. Going back to July who all lived with you? 9 A. Ten people. 10 Q. Okay. So for the year, you had ten people living with you? 13 A. Yes.

我想做的事：我希望循环浏览整个.txt文件，并在每个"Q"前面添加一个"\n"one_answers"A."这样，当我重新打开.txt文件时，每个Q.和A.字符串都在一个单独的行上。

Answer 1

您可以使用.replace()将每个"Q."替换为"nQ."(类似于"A."(。

with open("in.txt") as in_file, open("out.txt", "w") as out_file:
for line in in_file:
out_file.write(line.replace("A.", "nA.").replace("Q.", "nQ."))