Question

input_string = '7:30 p.m. 7:20 p.m.every Mon., any Wed.Thu,fri'

我想这样：

print match.group('day')= mon, wed, thu, fri
print match.group('starttime')= 7:30 p.m, 7:20 p.m

我试过了：

match = re.search(r'(?P<starttime>([\d]*:[\d]*)(?:[ .apm]*m)?)
         .*?(?P<day>(?i)(?:mon(?:day)?|tue(?:sday)?|wed(?:nesday)?|
         thu(?:rsday)?|fri(?:day)?|sat(?:urday)?|sun(?:day)?))'
             , input_string)

但我没有做对。

Answer 1

您需要为时间和日期部分使用单独的模式，然后使用.findall()查找多个匹配项：

>>> re.findall(r'(?P<starttime>[\d]*:[\d]*(?:[ .apm]*m)?)', input_string)
['7:30 p.m', '7:20 p.m']
>>> re.findall(r'(?P<day>(?i)(?:mon(?:day)?|tue(?:sday)?|wed(?:nesday)?|thu(?:rsday)?|fri(?:day)?|sat(?:urday)?|sun(?:day)?))', input_string)
['Mon', 'Wed', 'Thu', 'fri']

然后命名组真的是多余的，以下是：

re.findall(r'[\d]*:[\d]*(?:[ .apm]*m)?', input_string)
re.findall(r'(?i)mon(?:day)?|tue(?:sday)?|wed(?:nesday)?|thu(?:rsday)?|fri(?:day)?|sat(?:urday)?|sun(?:day)?', input_string)

如何在字符串中找到重复的不同模式

1 个答案: