Question

示例代码：

import re

source = """
BEGIN:VEVENT
DTSTART:20160404T113000Z
DTEND:20160404T141500Z
LOCATION:A3006
SUMMARY:[I-EM-3N:Energy Management Gr 3N] Basics of Mathematical Software
END:VEVENT

BEGIN:VEVENT
DTSTART:20160404T113000Z
DTEND:20160404T141500Z
LOCATION:A3007
SUMMARY:[I-EM-3N:Energy Management Gr 3N] Chemistry and Environment
END:VEVENT
"""

pattern = r'BEGIN.*?DTSTART:(\d{4})(\d{2})(\d{2})T(\d{2})(\d{2})\d{2}Z.*?DTEND:(\d{4})(\d{2})(\d{2})T(\d{2})(\d{2})\d{2}Z.*LOCATION:(.*?)\n.*?SUMMARY:\[(.*?):.*?\]\s(.*?)\s?\n.*?END:VEVENT'


s = re.findall(pattern, source, re.DOTALL)
print s

结果是[（＆＃39; 2016＆＃39;，＆＃39; 04＆＃39;，＆＃39; 04＆＃39;，＆＃39; 11＆＃39;，＆＃39; 30＆＃ 39;，＆＃39; 2016＆＃39;，＆＃39; 04＆＃39;，＆＃39; 04＆＃39;，＆＃39; 14＆＃39;，＆＃39; 15＆＃39;，＆＃ 39; A3007＆＃39;，＆＃39; I-EM-3N＆＃39;，＆＃39;化学与环境＆＃39;）]，但又在哪一个？

Answer 1

你忘了参加一场外卡比赛非贪心（适合我）：

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input class="contact-text-filed" maxlength="50" name="subject" id="subject" placeholder="Subject" type="text" value="" class="test" />

而且，由于表达式很复杂且不易阅读，请考虑使用"verbose" mode：

BEGIN.*?DTSTART:(\d{4})(\d{2})(\d{2})T(\d{2})(\d{2})\d{2}Z.*?DTEND:(\d{4})(\d{2})(\d{2})T(\d{2})(\d{2})\d{2}Z.*?LOCATION:(.*?)\n.*?SUMMARY:\[(.*?):.*?\]\s(.*?)\s?\n.*?END:VEVENT
                                                                                                           HERE^

python re.findall（）只给我一个结果

1 个答案: