更有效的加入元组的方式？

Question

有没有更有效的方法来加入元组？既然我的rx给了我一个元组？ 此外c为 '7:30' 'AM' 结尾，并且我需要 '7:30 AM'

import re 

rx = r"(?i)\b(\d{1,2}:\d{2})(?:-\d{1,2}:\d{2})?(\s*[pa]m)\b" 
s = "ankkjdf 7:30-8:30 AM dds " 

matches = re.findall(rx, s) 

m=str(matches) 

a =''.join(m[2:8]) 
b= ''.join(m[9:15]) 

c = "".join(a + b) 

print(c) 

Answer 1

>>> import re 
>>> rx = r"(?i)\b(\d{1,2}:\d{2})(?:-\d{1,2}:\d{2})?(\s*[pa]m)\b" 
>>> s = "ankkjdf 7:30-8:30 AM dds " 
>>> matches = re.findall(rx, s) 
>>> matches 
[('7:30', ' AM')] 
>>> [ "".join(x) for x in matches] 
['7:30 AM'] 
>>> 

或

>>> "".join(matches[0]) 
'7:30 AM' 
>>> 

从源

，或者直接

>>> [ "".join(x) for x in re.findall(rx, s)] 
['7:30 AM'] 
>>> "".join(re.findall(rx, s)[0]) 
'7:30 AM' 
>>> 

有没有理由做m=str(matches)，只是融合在一起你以任何你想要的方式...

---

了最新的例子

>>> test="Join us for a guided tour of the Campus given by Admissions staff. The tour will take place from 1:15-2:00 PM EST and leaves from the Admissions Office." 
>>> [ "".join(x) for x in re.findall(rx, test)] 
['1:15 PM'] 
>>> "".join(re.findall(rx, test)[0]) 
'1:15 PM' 
>>>