python - python 正则表达式：匹配第一个“}”

Question

我有一个字符串s包含： -

Hello {full_name} this is my special address named {address1}_{address2}.

我正在尝试匹配大括号中包含的所有字符串实例。

尝试：-

matches = re.findall(r'{.*}', s)

给我

['{full_name}', '{address1}_{address2}']

但我实际上想要检索的是

['{full_name}', '{address1}', '{address2}']

我怎样才能做到这一点？

Answer 1

>>> import re
>>> text = 'Hello {full_name} this is my special address named {address1}_{address2}.'
>>> re.findall(r'{[^{}]*}', text)
['{full_name}', '{address1}', '{address2}']

Answer 2

尝试非贪婪匹配：

matches = re.findall(r'{.*?}', s)

Answer 3

你需要一个非贪婪的量词：

matches = re.findall(r'{.*?}', s)

注意问号?。