使用正则表达式隔离词语与EI或IE在它

Question

如何使用正则表达式隔离的话与EI或IE的呢？

import re
value = ("How can one receive one who over achieves while believing that he/she cannot be deceived.")
list = re.findall("[ei,ie]\w+", value)
print(list)

它应该打印['receive', 'achieves', 'believing', 'deceived']，但我得到['eceive', 'er', 'ieves', 'ile', 'elieving', 'eceived']代替。

Answer 1

所述集语法[]为单个字符，所以使用(?:)代替，与由|分隔单词。这就像使用一组，但它并没有捕获匹配组像()会。你也想两边的\w被捕获，以获得整个单词。

import re
value = ("How can one receive one who over achieves while believing that he/she cannot be deceived.")
list = re.findall("(\w*(?:ei|ie)\w*)", value)
print(list)

---

['receive', 'achieves', 'believing', 'deceived']

（我假设你的意思是“达到”，而不是“实现”，因为这实际上这里出现的词。）