Question

I have a list of directories hard coded into my program as such:

import os
my_dirs = ["C:afoo"
          ,"C:foo"
          ,"C:cfoo"
          ,"C:	foo"
          ]

我后来想开展一些行动,例如os.path.isfile(my_dirs[3])。但是,由于<条码>“在表格或片面上都很短,因此对我方言的描述正在变得很贴上。

我知道,解决这一问题的办法就是利用:

my_dirs = ["C:\a\foo"
          ,"C:\b\foo"
          ,"C:\c\foo"
          ,"C:\t\foo"
          ]

And another solution would be to use forward slashes.

但是,我能够把目录从探索者复制到我的沙尔法。我是否可以告诉沙里夫不要将<条码>“变成我的问题的表格或其他解决办法?

Answer 1

Use forward slashes or raw strings: r C:afoo or C:/a/foo

实际上,使用前方冲突是更好的解决办法,因为正如“我们斯利”所述,你不可能有原始的扼杀力,以单方的反弹结束。虽然os.path的功能将使用窗户上的斜坡,但组合起来不会造成任何问题——因此,这意味着在硬编码道路上使用斜坡,不注意功能中引入的斜坡。

Don t forget that hardcoded paths are a bad thing per se though. Especially if you use system folders (including "My Documents" and "AppData") you should rather use WinAPI functions to retrieve them no matter where they are actually located.

Answer 2

我建议使用forward slashes或double reslashes。 ThiefMaster所吞的原始扼杀可成trick;例如,它不能用斜,结束;因此, c是not。 a 有效的原体。见python docs :

r"" is not a valid string literal (even a raw string cannot end in an odd number of backslashes). Specifically, a raw string cannot end in a single backslash (since the backslash would escape the following quote character)

友情链接