Python使用正则表达式匹配时间的详解

>>> import re
>>> t = '19:10:48'
>>> m = re.match(r'(.*):(.*):(.*)', t)
>>> m.groups()
('19', '10', '48')

>>> t = '19:10:48'
>>> m = re.match(r'(\d{2}):(\d{2}):(\d{2})', t)
>>> m.groups()
('19', '10', '48')

>>> t = '23:59:08'
>>> p = re.compile(r'^(0?[0-9]|1[0-9]|2[0-3]):(0?[0-9]|[1-5][0-9]):(0?[0-9]|[1-5][0-9])$')
>>> s = p.search(t)
>>> s.groups()
('23', '59', '08')