Python 网页抓取样式内容

Question

我只想使用 python 从 HTML 中提取数据。（我需要 data = 20%）如有任何帮助，我们将不胜感激。

<div class="ratings-container">
  <div class="ratings">
    <div class="ratings active" style="width: 20%"></div>
  </div>
</div>

我不知道如何获取样式内容。以下类似代码的结果为 NULL：

mratingNew = (tag.findAll('div',attrs={"class":"ratings active"})) 
for i in range(len(muserName)): 
    print(mratingNew[i].['style'])

Answer 1

您可以使用 find 获取宽度，并可以根据 :

拆分它

from bs4 import BeautifulSoup

html = '''<div class="ratings-container">
  <div class="ratings">
 <div class="ratings active" style="width: 20%"></div>
   </div>
     </div>'''

soup = BeautifulSoup(html,"html.parser")
finddiv = soup.find('div',attrs={'class':'ratings active'})
style = finddiv['style']

style = style.split(':',1)[-1]
print style

输出：

20%

如果您有多个具有相同 class 名称的宽度，例如：

html = '''<div class="ratings-container">
 <div class="ratings">
 <div class="ratings active" style="width: 20%"></div>
 <div class="ratings active" style="width: 40%"></div>
 <div class="ratings active" style="width: 30%"></div>
   </div>
     </div>'''

需要用到findAll，一一拆分

find_last_div = soup.findAll('div',attrs={'class':'ratings active'})
for width_value in find_last_div:
    width_Get = width_value['style'].split(':',1)[-1]
    print width_Get

输出：

 20%
 40%
 30%

Python 网页抓取样式内容

Python web scraping style content

beautifulsoup

html-parsing

web-scraping

python-3.x

jupyter-notebook