Question

我有这个链接：

http://www.mySite.come/part1/one-two-12/one-two-three-four-x36-250g-P469198/

如果最后一部分以'P'开头并且数字如：P432432

，我想要谢谢

我怎么能爆炸并检查我的病情？

我试过了：

url="http://www.mySite.come/part1/one-two-12/one-two-three-four-x36-250g-P469198/"
url.s.split('-')

Answer 1

您可以使用-P\d+/?$正则表达式：

>>> import re
>>> url = "http://www.mySite.come/part1/one-two-12/one-two-three-four-x36-250g-P469198/"
>>> re.search(r"-P\d+/?$", url)
<_sre.SRE_Match object at 0x104faf920>

说明：

-P是一个短划线，后跟P，字面意思
\d+会匹配一个或多个数字
/?可选择匹配斜杠（考虑到它可能并不总是存在）
$将匹配字符串的结尾

如果要提取该部分，请使用捕获组：

>>> match = re.search(r"-(P\d+)/?$", url)
>>> match.group(1)
'P469198'

Answer 2

您可以使用

re.sub("[^\w]", "" , url.split('-')[-1])

获取最后一部分并使用

进行验证

re.match("P\d+", re.sub("[^\w]", "", url.split('-')[-1]))

或

re.search("P\d+", re.sub("[^\w]", "", url.split('-')[-1]))

Answer 3

如果您只是需要检查最后一部分是否包含var input = @"Jesus said, ""'Love your neighbor as yourself.' There is no commandment greater than these"" (Mark 12:31)."; var bibleQuotesRegex = @"(?<quote>"".+"") # a series of any characters in quotes \s + # followed by spaces $ # followed by a parenthetical expression (?<book>\d*[a-z.\s] *) # book name (a-z, . or space) optionally preceded by digits. e.g. '1 Cor.' (?<chapter>\d+) # chapter e.g. the '1' in 1:2 : # semicolon (?<verse>\d+) # verse e.g. the '2' in 1:2 $"; foreach(Match match in Regex.Matches(input, bibleQuotesRegex, RegexOptions.IgnorePatternWhitespace | RegexOptions.Singleline | RegexOptions.IgnoreCase)) { var bibleQuote = new { Quote = match.Groups["quote"].Value, Book = match.Groups["book"].Value, Chapter = int.Parse(match.Groups["chapter"].Value), Verse = int.Parse(match.Groups["verse"].Value) }; //do something with it. }，您可以使用：

-Pdigit

if re.search(r"-P\d+/$", subject, re.DOTALL):
    # Successful match
else:
    # Match attempt failed

如何在Python中爆炸和正则表达式

3 个答案: