为什么带有"\"的路径显示为"\\"? [英] Why is path with '\' showed as '\\' ?

问题描述

大家好，

我正在用Java在Eclipse中对应用程序进行编程，我使用了带有路径(例如C:\ Java \ Test-Application \ config.ini)的输入文件.

当我调试该应用程序时，此路径写为:
C:\\ Java \\ Test-Application \\ config.ini

为什么会这样呢?我不太明白，为什么会有双反斜杠而不是一个.

感谢您的帮助.
Painjofshem

Hi guys,

I''m programming an application with Java in Eclipse and I use a input-file which is given with a path (p.e. C:\Java\Test-Application\config.ini).

When I debugg this application, this path is written as:
C:\\Java\\Test-Application\\config.ini

Why does that happen? I don''t really understand, why there are double-backslashes instead of one.

Thx for your help.
Painjofshem

推荐答案

该\被视为转义字符，因此您需要\\告诉Java它是\

the \ is seen as an escape character so you need \\ to tell java it is \

是因为\是转义字符 [

That''s because \ is an escape character[^], e.g. when you want a new line in your string you would write \r\n thus you have to write \\ for your string to contain the character \.

''\''是转义字符
因此要将路径中的"\"视为普通字符而不是转义字符，则需要使用"\\".
这就是为什么调试器显示"\\"的原因.

''\'' is a escape character
so to consider ''\'' in path as normal character and not escape character you need to use ''\\''.
that why the debugger shows ''\\''.

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