python 使用 data-gs 选择 xpath 并打印文本值

Answer 1

data-gs

属性的值不是静态的。它的值随着每个请求而变化，因此我们可以使用更好的 xpath 来解决识别价格问题。 下面的代码片段按预期工作。

from selenium import webdriver
from lxml import html
from time import sleep

def main():
    driver = webdriver.Chrome()

    URL = "https://www.google.com/travel/flights/search?tfs=CBwQAhooEgoyMDI0LTA2LTEwagwIAhIIL20vMDFfZDRyDAgDEggvbS8wMTkxNBooEgoyMDI0LTA4LTEzagwIAxIIL20vMDE5MTRyDAgCEggvbS8wMV9kNEABSAFwAYIBCwj___________8BmAEB&tfu=EgYIAhAAGAA&hl=en-US&curr=USD"

    driver.get(URL)
    sleep(5)

    tree = html.fromstring(driver.page_source)
    flights = tree.xpath("//div[contains(@class,'U3gSDe')]/div/div[contains(@class,'YMlIz FpEdX')]/span")
    print(len(flights))
    for item in flights: 
        print(item.text)
    
    driver.close()
    return

main()

输出：

9
$1,963
$2,097
$2,385
$2,657
$2,912
$2,947
$3,079
$3,337
$5,374