如何打印单个反斜杠？ [英] How to print a single backslash?

问题描述

当我写 print（'\'）或 print（ \）或 print（'\'），Python不会打印反斜杠 \ 符号。相反，它会为前两个错误，并在第二个显示’。我应该怎么做才能打印反斜杠？

When I write print('\') or print("\") or print("'\'"), Python doesn't print the backslash \ symbol. Instead it errors for the first two and prints '' for the second. What should I do to print a backslash?

推荐答案

您需要在反斜杠前面加上另一个反斜杠来转义：

You need to escape your backslash by preceding it with, yes, another backslash:

print("\\")

并且对于Python 3之前的版本：

And for versions prior to Python 3:

print "\\"

\ 字符称为转义字符，对后面的字符有不同的解释。例如， n 本身只是一个字母，但是当您在其前面加上反斜杠时，它变为 \n ，这是换行符字符。

The \ character is called an escape character, which interprets the character following it differently. For example, n by itself is simply a letter, but when you precede it with a backslash, it becomes \n, which is the newline character.

您可能会猜到， \ 也需要转义，因此它的功能不像转义符。

As you can probably guess, \ also needs to be escaped so it doesn't function like an escape character. You have to... escape the escape, essentially.

请参阅有关字符串文字的Python 3文档。

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