在python字符串中同时具有单引号和双引号 [英] Having both single and double quotation in a python string

问题描述

我正在尝试在 python 中创建一个包含单引号和双引号的字符串 -- ('".我需要这个表达式的原因是用作某些外部批处理命令的输入.但是，python 总是自动将其更正为 (\' ").我想知道是否有办法将双引号和单引号放在一起.谢谢.

解决方案

使用三重引号.

"""Trip'le qu"oted"""

或

'''Ag'ain qu"oted'''

请记住，仅仅因为 Python repr 是一个带反斜杠的字符串，并不意味着它实际上在字符串中添加了任何斜杠，它可能只是显示转义的特殊字符.

使用 Python 教程中的示例:

<预><代码>>>>len('不是，"她说.')18>>>len('''不是，"她说.''')18

即使第二个字符串由于没有反斜杠而显得短了一个字符，但它实际上是相同的长度——反斜杠只是为了转义单引号字符串中的单引号.

另一个例子:

<预><代码>>>>for c in '''不是，"她说.''':... sys.stdout.write(c)...不是，"她说.>>>

如果你不让 Python 格式化字符串，你可以看到字符串没有改变，只是 Python 试图明确地显示它.

请参阅有关字符串的教程部分.

Hi I'm trying to have a string that contains both single and double quotation in python -- ('"). The reason I need this expression is to use as an input to some external batch command. However, python always automatically corrects this to (\' "). I wonder if there's a way to put a double quotation and a single quotation together as it is. Thanks.

解决方案

Use triple quotes.

"""Trip'le qu"oted"""

or

'''Ag'ain qu"oted'''

Keep in mind that just because Python reprs a string with backslashes, doesn't mean it's actually added any slashes to the string, it may just be showing special characters escaped.

Using an example from the Python tutorial:

>>> len('"Isn\'t," she said.')
18
>>> len('''"Isn't," she said.''')
18

Even though the second string appears one character shorter because it doesn't have a backslash in it, it's actually the same length -- the backslash is just to escape the single quote in the single quoted string.

Another example:

>>> for c in '''"Isn't," she said.''':
...     sys.stdout.write(c)
... 
"Isn't," she said.
>>> 

If you don't let Python format the string, you can see the string hasn't been changed, it was just Python trying to display it unambiguously.

See the tutorial section on strings.

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