Python爬取表格的基本步骤如下:导入所需的库:
Python爬取表格的基本步骤如下:
1. 导入所需的库:
python
import requests
from bs4 import BeautifulSoup
import pandas as pd
2. 获取网页源代码:
python
url = 'https://www.example.com/'
response = requests.get(url)
html = response.text
3. 使用BeautifulSoup解析网页源代码:
python
soup = BeautifulSoup(html, 'lxml')
4. 找到表格所在的标签:
python
table = soup.find('table', attrs={'class': 'table'})
5. 解析表格,提取表格中的数据:
python
# 获取表头
headings = [th.get_text().strip() for th in table.find("tr").find_all("th")]
# 获取表格内容
datasets = []
for row in table.find_all("tr")[1:]:
dataset = dict(zip(headings, (td.get_text().strip() for td in row.find_all("td"))))
datasets.append(dataset)
6. 将数据保存到DataFrame中:
python
df = pd.DataFrame(datasets)
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