从html文件中提取元素的Python BeautifulSoup

发布于10月20日

我是BeautifulSoup的新手，我想用它来提取98.2%和94.2%的元素. 我想打印:

apples: 98.2% bananas: 94.2%个

我该怎么做呢？先谢谢你.

<div>
  <table class="stock">
    <tr>
      <th></th>
      <th scope="col">Equal</th>
      <th scope="col">Total</th>
      <th scope="col">Fruits</th>
    </tr>
    <tr>
      <th scope="row">apples:</th>
      <td>524</td>
      <td>525</td>
      <td class="high">98.2%</td>
    </tr>
    <tr>
      <th scope="row">pears:</th>
      <td>58</td>
      <td>58</td>
      <td class="high">100.0%</td>
    </tr>
    <tr>
      <th scope="row">bananas:</th>
      <td>165</td>
      <td>179</td>
      <td class="high">94.2%</td>
    </tr>
  </table>

最初，我try 了以下操作，但它会打印: [98.2百分之一百、百分之九十四点二]

from bs4 import BeautifulSoup
HTMLFile = open("stock.html", "r")
index = HTMLFile.read()
soup = BeautifulSoup(index, 'html.parser')
element = soup.select(".stock .high")
print(element)

推荐答案

try :

from bs4 import BeautifulSoup

html_text = """\
  <table class="stock">
    <tr>
      <th></th>
      <th scope="col">Equal</th>
      <th scope="col">Total</th>
      <th scope="col">Fruits</th>
    </tr>
    <tr>
      <th scope="row">apples:</th>
      <td>524</td>
      <td>525</td>
      <td class="high">98.2%</td>
    </tr>
    <tr>
      <th scope="row">pears:</th>
      <td>58</td>
      <td>58</td>
      <td class="high">100.0%</td>
    </tr>
    <tr>
      <th scope="row">bananas:</th>
      <td>165</td>
      <td>179</td>
      <td class="high">94.2%</td>
    </tr>
  </table>"""

soup = BeautifulSoup(html_text, "html.parser")

for tr in soup.select('tr:-soup-contains("apples", "bananas")'):
    print(tr.th.text, tr.find(class_="high").text)

打印: