为什么Python的原始字符串文字不能以单个反斜杠结尾?

问题描述

从技术上讲，如中所述，任意数量的反斜杠文档.

>>> r'\'
  File "<stdin>", line 1
    r'\'
       ^
SyntaxError: EOL while scanning string literal
>>> r'\\'
'\\\\'
>>> r'\\\'
  File "<stdin>", line 1
    r'\\\'
         ^
SyntaxError: EOL while scanning string literal

似乎解析器可以将原始字符串中的反斜杠视为常规字符(这不是原始字符串的全部含义吗?)，但是我可能缺少明显的东西.

It seems like the parser could just treat backslashes in raw strings as regular characters (isn't that what raw strings are all about?), but I'm probably missing something obvious.

推荐答案

原因在本部分中以粗体突出显示的部分进行了解释:

The reason is explained in the part of that section which I highlighted in bold:

因此原始字符串不是100％原始的，仍然存在一些基本的反斜杠处理.

So raw strings are not 100% raw, there is still some rudimentary backslash-processing.

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