在python中使用反斜杠(不要转义) [英] using backslash in python (not to escape)

问题描述

import os
path= os.getcwd()
final= path +'\xulrunner.exe ' + path + '\application.ini'
print final

我想要输出:

c:\python25\xulrunner.exec:\python25\application.ini

c:\python25\xulrunner.exe c:\python25\application.ini

我不希望反斜杠作为字符串工作，我的意思是不希望它转义或做任何特殊的事情.但是我得到一个错误

I don't want backslash to work as string, i mean don't want it to escape or do anything special. But i get an error

无效的 \x 转义

如何将 '\' 用作 '\' 而不是转义符?

How can i use a '\' as a '\' and not an escape?

推荐答案

要直接回答您的问题，请将 r 放在字符串前面.

To answer your question directly, put r in front of the string.

final= path + r'\xulrunner.exe ' + path + r'\application.ini'

但更好的解决方案是 os.path.join:

But a better solution would be os.path.join:

final = os.path.join(path, 'xulrunner.exe') + ' ' + \
         os.path.join(path, 'application.ini')

(那里的反斜杠用于转义换行符，但如果您愿意，您可以将整个内容放在一行中)

(the backslash there is escaping a newline, but you could put the whole thing on one line if you want)

我会提到您可以在文件路径中使用正斜杠，Python 会根据需要自动将它们转换为正确的分隔符(Windows 上的反斜杠).所以

I will mention that you can use forward slashes in file paths, and Python will automatically convert them to the correct separator (backslash on Windows) as necessary. So

final = path + '/xulrunner.exe ' + path + '/application.ini'

应该可以.但最好还是使用 os.path.join，因为这样可以清楚地表明您要做什么.

should work. But it's still preferable to use os.path.join because that makes it clear what you're trying to do.

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