为什么 raw 的 r 禁止转义会失效呢

V2EX = way to explore

V2EX 是一个关于分享和探索的地方

现在注册

已注册用户请登录

推荐学习书目

› Learn Python the Hard Way

Python Sites

› PyPI - Python Package Index

› http://diveintopython.org/toc/index.html

› Pocoo

值得关注的项目

› PyPy

› Celery

› Jinja2

› Read the Docs

› gevent

› pyenv

› virtualenv

› Stackless Python

› Beautiful Soup

› 结巴中文分词

› Green Unicorn

› Sentry

› Shovel

› Pyflakes

› pytest

Python 编程

› pep8 Checker

Styles

› PEP 8

› Google Python Style Guide

› Code Style from The Hitchhiker's Guide

这是一个创建于 1142 天前的主题，其中的信息可能已经有所发展或是发生改变。


aim = {
    "official" : r"D:\下载\Temp\official\",
    "others" : r"D:\下载\Temp\others\"
}

屏幕截图 2021-11-06 160451.png

8 条回复 • 2021-11-08 14:12:38 +08:00

Dvel

2021-11-06 16:26:09 +08:00

原生字符串的结尾不能是 “反斜杠” + “引号” 。
可以写成 r'D:\下载\Temp\official' + '\\'

festoney8

2021-11-06 16:26:55 +08:00

后边的引号被转义了
另： https://stackoverflow.com/questions/2953834/windows-path-in-python

leoleoasd

2021-11-06 16:41:40 +08:00

根据 python 文档：Even in a raw literal, quotes can be escaped with a backslash, but the backslash remains in the result; for example, r"\"" is a valid string literal consisting of two characters: a backslash and a double quote; r"\" is not a valid string literal (even a raw string cannot end in an odd number of backslashes). Specifically, a raw literal cannot end in a single backslash (since the backslash would escape the following quote character). Note also that a single backslash followed by a newline is interpreted as those two characters as part of the literal, not as a line continuation.

leoleoasd

2021-11-06 16:41:49 +08:00

https://leoleoasd.me/2020/02/27/python-raw-string/