带 \n 的 Python 条带 [英] Python strip with \n

问题描述

这是我的问题.

我正在尝试读取文本文件，然后将行转换为浮点数.文本文件中有 \n 和 \t 虽然我不知道如何摆脱它.

I'm trying to read a text file and then convert the lines into floats. The text file has \n and \t in it though I don't know how to get rid of it.

我尝试使用 line.strip() 但它没有去掉，当我想将内容转换为浮点数时出现错误.然后我尝试了 line.strip("\n") 但这也不起作用.当我从文本文件中取出 \t 和 \n 时，我的程序运行良好，但这是让它与它们一起工作的任务的一部分.

I tried using line.strip() but it didn't take it off and I got an error when I wanted to convert the stuff to floats. I then tried line.strip("\n") but that didn't work either. My program works fine when I take out the \t and \n from the text file, but it's part of the assignment to get it to work with them.

我真的不知道为什么这不起作用.谢谢你的帮助.

I really don't know why this isn't working. Thanks for any help.

推荐答案

你应该能够使用 line.strip('\n') 和 line.strip('\t').但是这些不会修改 line 变量……它们只是返回去除了 \n 和 \t 的字符串.所以你必须做类似的事情

You should be able to use line.strip('\n') and line.strip('\t'). But these don't modify the line variable...they just return the string with the \n and \t stripped. So you'll have to do something like

line = line.strip('\n')
line = line.strip('\t')

这应该适用于从头到尾删除.如果字符串中间有 \n 和 \t ，则需要做

That should work for removing from the start and end. If you have \n and \t in the middle of the string, you need to do

line = line.replace('\n','')
line = line.replace('\t','')

将 \n 和 \t 替换为虚无.

to replace the \n and \t with nothingness.

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