python3 爬蟲(chóng)

請(qǐng)問(wèn)，使用python3 爬取數(shù)據(jù)的時(shí)候，怎么樣獲得類(lèi)似于<td>4</td>中，4這個(gè)值呢？？？

回答

編輯回答

咕嚕嚕

https://www.crummy.com/softwa...

html_doc = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="title"><b>The Dormouse's story</b></p>

<p class="story">Once upon a time there were three little sisters; and their names were
<a  class="sister" id="link1">Elsie</a>,
<a  class="sister" id="link2">Lacie</a> and
<a  class="sister" id="link3">Tillie</a>;
and they lived at the bottom of a well.</p>

<p class="story">...</p>
"""

from bs4 import BeautifulSoup
soup = BeautifulSoup(html_doc)

soup.title
# <title>The Dormouse's story</title>

soup.title.name
# u'title'

soup.title.string
# u'The Dormouse's story'

soup.title.parent.name
# u'head'

soup.p
# <p class="title"><b>The Dormouse's story</b></p>

soup.p['class']
# u'title'

soup.a
# <a class="sister"  id="link1">Elsie</a>

soup.find_all('a')
# [<a class="sister"  id="link1">Elsie</a>,
#  <a class="sister"  id="link2">Lacie</a>,
#  <a class="sister"  id="link3">Tillie</a>]

soup.find(id="link3")
# <a class="sister"  id="link3">Tillie</a>

2018年1月7日 10:36

編輯回答