通过Python使用find_element时Selenium找不到元素

Question

不断收到unable to locate element错误消息。xpath 的第一个查找元素很好，但第二个让我很难过。这是我的代码：import XLUtilsfrom selenium import webdriverdriver=webdriver.Chrome(executable_path="C:\Chrome_Driver\Chromedriver.exe")driver.get("https://www.canada.ca/en/revenue-agency/services/e-services/e-services-businesses/payroll-deductions-online-calculator.html")driver.find_element_by_xpath('/html/body/main/div[1]/div[7]/p/a[1]').click()driver.find_element_by_xpath('//*[@id="welcome_button_next"]').click()

Answer 1

您需要稍等片刻，Next按钮才会出现。

from selenium.webdriver.support import expected_conditions as EC

from selenium.webdriver.common.by import By

from selenium.webdriver.support.wait import WebDriverWait

wait = WebDriverWait(driver, 10)

e = wait.until(

    EC.presence_of_element_located((By.XPATH, '//*[@id="welcome_button_next"]'))

    )

e.click()

Answer 2

要单击文本为Next的元素，您需要诱导WebDriverWait以使元素可单击，您可以使用以下任一解决方案：

使用CSS_SELECTOR：

WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "input.btn.btn-primary#welcome_button_next"))).click()

使用XPATH：

WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//input[@class='btn btn-primary' and @id="welcome_button_next"]"))).click()

注意：您必须添加以下导入：

from selenium.webdriver.support.ui import WebDriverWait

from selenium.webdriver.common.by import By

from selenium.webdriver.support import expected_conditions as EC