Ruby中的斜杠和反斜杠 [英] slash and backslash in Ruby

问题描述

我想编写一个可以在Windows和Linux上运行的应用程序.但是我遇到了路径问题，因为Windows使用"\"，而Linux使用"/".如何解决此问题. 谢谢

I want to write a application that works in windows and linux. but I have a path problem because windows use "\" and Linux use "/" .how can I solve this problem. thanks

推荐答案

在Ruby中，Linux或Windows中的路径没有区别.无论环境如何，路径都应使用/.因此，要在Windows中使用任何路径，请将所有\替换为/. File#join适用于Windows和Linux.例如，在Windows中:

In Ruby, there is no difference between the paths in Linux or Windows. The path should be using / regardless of environment. So, for using any path in Windows, replace all \ with /. File#join will work for both Windows and Linux. For example, in Windows:

Dir.pwd
=> "C/Documents and Settings/Users/prince"

File.open(Dir.pwd + "/Desktop/file.txt", "r")
=> #<File...>

File.open(File.join(Dir.pwd, "Desktop", "file.txt"), "r")
=> #<File...>

File.join(Dir.pwd, "Desktop", "file.txt")
=> "C/Documents and Settings/Users/prince/Desktop/file.txt"

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