用正则表达式提取带小数点的整句话

Question

我试图使用正则表达式来提取一个包含单词“R&D”的句子。 我的密码是

**\s[^.?!]*R&D[^.?!]*[?.!]**

我希望得到The third quarter R&D spending was 2.4 million, up approximately 100,000 from Q2 levels. SG&A expenses were 3.4 million, down 200,000 from Q2.

我得到了The third quarter R&D spending was 2.

Answer 1

可以用[\w\W]环绕R&D，以匹配所有字母数字和非字母数字字符：

import re
s = "The third quarter R&D spending was 2.4 million, up approximately 100,000 from Q2 levels. SG&A expenses were 3.4 million, down 200,000 from Q2."
sentence = re.findall('^[\w\W]+R&D[\w\W]+$', s)[0]

输出：

'The third quarter R&D spending was 2.4 million, up approximately 100,000 from Q2 levels. SG&A expenses were 3.4 million, down 200,000 from Q2.'