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噜啦 - 正则

结合正则表达式爬取网页 - 噜啦 正则表达式分组功能实例 - 噜啦
正则表达式库函数match与search的区别 - 噜啦
博主: 噜啦 · 2019-10-04 · via 噜啦 - 正则

代码

import re

p = re.compile(r'(\d+)-(\d+)-(\d+)')
print(p.match('2018-05-10').group(2))
print(p.match('2018-05-10').groups())
print(p.search('aaaaa2018-05-10'))
print(p.search('aaaaa20aaa18-05-10'))
print(p.search('aaaaa20aaa18aa-05-10'))

运行

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