我是 Python 的新手,我一直在嘗試使用 BeautifulSoup 從腳本元素中定義的變量中提取一個特定的數據行。代碼:import requestsfrom bs4 import BeautifulSoupimport esprima#----------------some comment'URL = 'https://downdetector.com/status/facebook/'browser = {'user-agent': 'my agent'}#--------------some comment:page = requests.get(URL, headers=browser)soup = BeautifulSoup(page.content, 'html.parser')#---------------some comment:chart = soup.find("div",{"class":"popover-container justify-content-center p-relative"}).script.get_text()print(chart)輸出:var data = {status: 'success', baseline: 29, communicate: null, company: 'Facebook',max: 66,series: [ { x: '2020-05-30T13:22:28.168484-04:00', y: 25 }, { x: '2020-05-30T13:37:28.168484-04:00', y: 27 }, ..... { x: '2020-05-31T13:07:28.168484-04:00', y: 30 }, ] } $(function () { chartThis(data, 'holder', 'line') }); if (data.communicate && $('#dd-communicate').length) { $('#dd-communicate').html('<div class="border text-left d-inline-block p-2"><i class="fa" aria-hidden="true" style="color: red; width:16px; height:12px; background:url(https://cdn2.downdetector.com/d328eb8cbe4e164/images/v2/message.svg) no-repeat"></i>' +'<span class="d-inline-block px-1">'+ data.company+' • ' + moment.utc(data.communicate.created_at).fromNow() + '</span><p class="font-weight-bold my-0">'+ data.communicate.message + '</p></div>') }你知道從上面的 var 結果中提取“最大”值的簡單方法嗎?我試過使用 esprima,但仍然沒有成功,因為我遇到了錯誤:追溯(最近一次調用最后一次):文件“c:/test.py,第 31 行,在 if token[”type“] == “Identifier” and token [“value”] == “max”: TypeError: 'BufferEntry ' 對象不可訂閱
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尚方寶劍之說
TA貢獻1788條經驗 獲得超4個贊
提取最大值的快速解決方案是split使用chart:
import requests
from bs4 import BeautifulSoup
URL = 'https://downdetector.com/status/facebook/'
browser = {'user-agent': 'my agent'}
page = requests.get(URL, headers=browser)
soup = BeautifulSoup(page.content, 'html.parser')
chart = soup.find("div",{"class":"popover-container justify-content-center p-relative"}).script.get_text()
max_val= chart.split("max: ")[1].split(",")[0]
print(max_val)
OUT: 64
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