BeautifulSoup 爬取报错为空

Question

我在使用BeautifulSoup爬取网页的时候发现结果为空 有人知道什么原因吗
我爬下来的html和检索网页的html不一样 有人知道原因吗

import requests
from bs4 import BeautifulSoup

url = "http://www.yuexingjp.com/flight/showfarefirst.aspx?from=CTU&to=PEK&__today__=20220709&FlightType=1&fc=%E6%88%90%E9%83%BD&tc=%E5%8C%97%E4%BA%AC&date=2022-07-22"

webpage_source = requests.get(url).text
content = BeautifulSoup(webpage_source, 'html5lib')

print(content.find_all(class_ = 'flight_airline'))

Answer 1

emmmm，你打印webpage_source 看下有没有请求url返回网页