Python有相当于Perl的qq吗？

Question

使用qq,Perl允许几乎任何字符用作引号来定义包含'和"不需要转义它们的字符串:

qq(She said, "Don't!")
qq¬And he said, "I won't."¬

(特别方便,因为我的键盘¬几乎从未使用过).

Python有相同的功能吗？

Answer 1

您可以使用三重单引号或三重双引号.

>>> s = '''She said, "Don't!"'''
>>> print(s)
She said, "Don't!"
>>> s = """'She sai"d, "Don't!'"""
>>> print(s)
'She sai"d, "Don't!'

Answer 2

您不能将任意字符定义为引号，但如果您需要在字符串中同时使用两者'，"您可以使用多行字符串来实现：

>>> """She said "that's ridiculous" and I agreed."""
'She said "that\'s ridiculous" and I agreed.'

但是请注意，如果您使用的引号类型也是字符串中的最后一个字符，Python 会感到困惑：

>>> """He yelled "Whatever's the matter?""""
SyntaxError: EOL while scanning string literal

所以你必须在这种情况下切换：

>>> '''He yelled "Whatever's the matter?"'''
'He yelled "Whatever\'s the matter?"'

纯粹作为替代方案，您可以将字符串分成具有和不具有每种引号类型的部分，并依赖 Python 隐式连接连续字符串：

>>> "This hasn't got double quotes " 'but "this has"'
'This hasn\'t got double quotes but "this has"'
>>> "This isn't " 'a """very""" "attractive" approach'
'This isn\'t a """very""" "attractive" approach'