如何使用Python中的Selenium在第一个下拉菜单的基础上等待第二个下拉菜单加载

pip install selenium

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

driver = webdriver.Chrome()  # 使用Chrome浏览器，需要提前安装ChromeDriver并配置到系统环境变量中

driver.get("https://example.com")  # 替换为你要访问的网页地址

first_dropdown = WebDriverWait(driver, 10).until(
    EC.presence_of_element_located((By.ID, "first_dropdown_id"))  # 替换为第一个下拉菜单的唯一标识符
)

first_dropdown.select_by_value("option_value")  # 替换为你要选择的选项的值

second_dropdown = WebDriverWait(driver, 10).until(
    EC.presence_of_element_located((By.ID, "second_dropdown_id"))  # 替换为第二个下拉菜单的唯一标识符
)

second_dropdown.select_by_value("option_value")  # 替换为你要选择的选项的值

driver.quit()