如何捕獲字符串中的特定單詞？

Question

我只想捕捉到各個部門的同學的名字和號碼：

line = "The Biology department averages 32 students/class" 

我試過re.search(r"\s\D+\d", line)但它不工作。

Answer 1

In [3]: department, students = re.search(r"(?:The\s+)?([A-Z]\w*).*\s+(\d+)\s+", line).groups() 

In [4]: print department, students 
Biology 32 

Answer 2

多一點明確的方法比基督教的回答，用lookahead：

>>> s = "The Biology department averages 32 students/class" 
>>> dept = r'\s+(\w+)\s+(?=department)' 
>>> students = r'\s+(\d+)\s+(?=students)' 
>>> re.findall(dept, s),re.findall(students,s) 
(['Biology'], ['32']) 

Answer 3

有點更清晰的方法，LOL

# encoding: UTF-8 
import re 
s = 'The Biology department averages 32 students/class' 
pattern1 = re.compile(r'.*?The (.*?) department') 
match1 = pattern1.match(s) 
if match1: 
    print match1.group(1) 
pattern2 = re.compile(r'.*? (\d.?) students') 
match2 = pattern2.match(s) 
if match2: 
    print match2.group(1)