用Python做爬虫任务时，是否可以用BeautifulSoup取代正则表达式?

gux

例如在下面的代码中，tags 似乎比正则表达式更好用：

1. # Vollyball
   
2. 
   
3. # Data from https://en.volleyballworld.com/en/vnl/2019/women/resultsandranking/round1
   
4. 
   
5. 
   
6. from bs4 import BeautifulSoup
   
7. import requests
   
8. # import re
   
9. 
   
10. req = requests.get('https://en.volleyballworld.com/en/vnl/2019/women/resultsandranking/round1')
    
11. soup = BeautifulSoup(req.text, 'html.parser')
    
12. prePattern = soup.find_all('tr', 'group')
    
13. patternThrhd = 0  # We take pattern as prePattern[patternThrhd:].
    
14. 
    
15. # Setting patternThrhd
    
16. for item in prePattern:
    
17.     tds = item.find_all('td')
    
18.     if tds[1]['class'] == ['result--highlight']:
    
19.         patternThrhd += 1
    
20.     else:
    
21.         break
    
22. 
    
23. pattern = prePattern[patternThrhd:]  # pattern is the list of matches.
    
24. dict = {}  # The dictionary of matches. The keywords are the numbers.
    
25. 
    
26. # td = pattern[0].find_all('td')
    
27. # print(td[3].string)
    
28. example = pattern[0].find_all('td')
    
29. indices = [1, 4, 5, 6, 7, 8, 10, 11]
    
30. 
    
31. for item in pattern:
    
32.     tds = item.find_all('td')
    
33.     dict[int(tds[0].string.replace('\r\n                            ', ''))] = \
    
34.         tuple(tds[i].string.replace('\r\n                            ', '') for i in indices)
    
35. 
    
36. 
    
37. print(pattern)
    

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wp231957

能抓耗子的就是好猫

kaohsing

适合自己的就是最好

小伤口

这个视情况而定吧，存在即合理

柿子饼同学

什么好用就用什么