python - 如何使用 Python + Selenium 从警告框中读取文本

Question

我想阅读警告框中的文本。

如果在警告框中找到此文本，我必须关闭警告框:

Answer 1

要阅读警告框中的文本，验证并关闭警告，您必须先切换到警告，然后按照以下步骤操作提到的步骤:

alert = chrome.switch_to_alert()
alert_text = alert.text
# validate the alert text
alert.accept()

不过，现在看来switch_to_alert() 已弃用。因此，根据当前的实现，您需要使用:

• switch_to.alert()如下:

  alert = driver.switch_to.alert()
  alert_text = alert.text
  # validate the alert text
  alert.accept()
  

• 根据最佳实践，您应该始终为 alert_is_present() 引入 WebDriverWait在切换到 Alert 之前，如下所示:

  from selenium.webdriver.support.ui import WebDriverWait
  from selenium.webdriver.common.by import By
  from selenium.webdriver.support import expected_conditions as EC
  # other lines of code
  alert = WebDriverWait(driver, 5).until(EC.alert_is_present)
  alert_text = alert.text
  # validate the alert text
  alert.accept()
  

You can find a relevant discussion in Why switching to alert through selenium is not stable?