如何在 selenium webdriver Python 中用鼠标单击第二层元素？

Question

我有一个代码假设“鼠标悬停”元素的第一层，然后单击执行“鼠标悬停”操作时出现的元素的第二层。如果我执行下面的代码，它总是向我显示一个错误 'NoSuchElementException: Message: Unable to locate element: .e'。请帮助理解我做错了什么。

from selenium import webdriver
from selenium.webdriver.common.action_chains import ActionChains

def select_random_sentence_to_delete(self):
      self.driver = webdriver.Firefox()
      self.driver.get('http://todomvc.com/examples/react/#/')
      action = ActionChains(self.driver);
      firstLevelMenu = self.driver.find_element(By.CLASS_NAME, "view"[2])
      action.move_to_element(firstLevelMenu).perform()
      secondLevelMenu = self.driver.find_element(By.CLASS_NAME, "destroy"[2])
      action.move_to_element(secondLevelMenu).perform()
      secondLevelMenu.click() ```

Answer 1

您需要链接这些操作，并且只有在您perform() 的所有操作之后：

driver.get("http://todomvc.com/examples/react/")
for i in range(10):
    WebDriverWait(driver,30).until(EC.element_to_be_clickable((By.CSS_SELECTOR, ".new-todo")))
    driver.find_element(By.CSS_SELECTOR, ".new-todo").send_keys(i, Keys.ENTER)
WebDriverWait(driver,30).until(EC.visibility_of_all_elements_located((By.CSS_SELECTOR, ".view input")))
for ele in driver.find_elements(By.CSS_SELECTOR, ".view input"):
    ele.click()
    actions = ActionChains(driver)
    actions.move_to_element(ele).move_to_element(driver.find_element(By.CSS_SELECTOR, ".destroy")).click().perform()

注意：我添加了WebDriverWait，所以你也需要导入它。

这里是导入：

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