python - 使用 finditer 后如何从正则表达式匹配对象中获取匹配的单词

Question

我制作了此模式来获取博客文章的 url 链接(可以在我的网站 url 中用连字符或下划线等分隔，以将其与数据库匹配并显示相应的帖子)。每当我将匹配项附加到列表中时，它们都是重新匹配对象。如何获取匹配的单词？

我尝试过使用搜索和匹配，但它们不会返回单独的单词。

import re
pattern = r"[a-zA-Z0-9]+[^-]+"
matches = re.finditer(pattern, "this-is-a-sample-post")
matches_lst = [i for i in matches]

假设我有字符串“this-is-a-sample-post”，我想得到“this is a example post”。

我想要一个匹配单词的列表，以便我可以使用“”.join() 方法并将字符串与我的数据库进行匹配。

Answer 1

import re
pattern = r"[a-zA-Z0-9]+[^-]+"
string = "this-is-a-sample-post"
matches = re.finditer(pattern, string)
matches_lst = [i.group(0) for i in matches]
print("Made with finditer:")
print(matches_lst)
print("Made with findall")
matches_lst = re.findall(pattern, string)
print(matches_lst)
print("Made with split")
print(string.split("-"))
print("Made with replace and split")
print(string.replace("-"," ").split())

输出:>>>

Made with finditer:
['this', 'is', 'sample', 'post']
Made with findall
['this', 'is', 'sample', 'post']
Made with split
['this', 'is', 'a', 'sample', 'post']
Made with replace and split
['this', 'is', 'a', 'sample', 'post']
>>>