Re

[TOC]

replace

re.sub(pattern, repl, string, count=0, flags=0)

search

提取数字

示例一

# 代码
s = "https://book.douban.com/subject/27031874/?icn=index-editionrecommend/458154564515/"
print(re.search(r'/(\d+)/', s).group())
print(re.search(r'/(\d+)/', s).group(1))
# 输出
/27031874/
27031874