Question

使用Beautiful Soup并将我的网络源数据隔离在'p'标签内，我设法检索到我需要的数据。现在，我想迭代变量'table'中的剩余数据（在每行和每个单元格上）以将数据刮到列表中。谁能帮助我如何实现这一目标？我已经阅读了其他几篇文章，但无法将其应用于我的具体问题......谢谢。

from bs4 import BeautifulSoup
import urllib2
url = "http://www.gks.ru/bgd/free/B00_25/IssWWW.exe/Stg/d000/000715.HTM"
page = urllib2.urlopen(url)
soup = BeautifulSoup(page.read(), 'html.parser')
table=soup.findAll('p',text=True)
print(table)

Answer 1

假设您想获得每月价格数据，您需要找到tr内的所有table元素并跳过前3个（标题行）。请注意，html.parser对我不起作用，但lxml做了（见Differences between parsers）：

soup = BeautifulSoup(page, 'lxml')  # requires 'lxml' to be installed

table = soup.find("center").find("table")
for row in table.find_all("tr")[3:]:
    cells = [cell.get_text(strip=True) for cell in row.find_all("td")]
    print(cells)

打印：

['January', '469,4', '15,0', '3,9']
['February', '479,8', '16,7', '2,2']
['March', '485,6', '16,9', '1,2']
['April', '487,8', '16,4', '0,5']
['May', '489,5', '15,8', '0,4']
['June', '490,5', '15,3', '0,2']
['July', '494,4', '15,6', '0,8']
['August', '496,1', '15,8', '0,4']
['September', '499,0', '15,7', '0,6']
['October', '502,7', '15,6', '0,7']
['November', '506,4', '15,0', '0,8']
['December', '', '', '']

从简化表中删除数据

1 个答案: