Python Selenium 单击一个元素（如果可见）答案

【问题标题】：Python Selenium click an element if visiblePython Selenium 单击一个元素（如果可见）
【发布时间】：2018-02-13 01:55:02
【问题描述】：

使用 Python Selenium 我正在尝试检查一个元素是否可见，如果是则单击它...

# Check to see if element is visible
    myelement = driver.find_element_by_xpath("//a[@id='form1']")

    if myelement.is_displayed():
        print (" ")
    else:
        driver.find_element_by_xpath("//a[@id='form1']").click

这不起作用，我哪里出错了？

【问题讨论】：

标签： python selenium selenium-webdriver

【解决方案1】：

假设你的 xpath 是正确的，你应该使用click()，而不是click。这是一个方法，而不是一个属性。

【讨论】：

【解决方案2】：

你有两个问题

click是一个方法，应该是click()

当前，如果按钮不显示，您正在尝试单击。应该是

if myelement.is_displayed():
    driver.find_element_by_xpath("//a[@id='form1']").click()
else:
    print (" ")

您也不必重新定位元素即可点击它

myelement = driver.find_element_by_xpath("//a[@id='form1']")

if myelement.is_displayed():
    myelement.click()
else:
    print (" ")

【讨论】：

【解决方案3】：

最好的方法是创建一个基类并重新定义 click and find 方法并使用它来代替：

from selenium                                 import webdriver
from selenium.webdriver.support.ui            import WebDriverWait
from selenium.webdriver.support.select        import Select
from selenium.webdriver.support               import expected_conditions as EC
from selenium.webdriver.common.by             import By
from abc                                      import abstractmethod




class LocatorMode:

 XPATH = "xpath"
 CSS_SELECTOR = "cssSelector"
 NAME = "name"
 ID = "id"
 TAG_NAME = "tagName"


class BasePage(object):

 def __init__(self, driver):
     self.driver = driver


 def wait_for_element_visibility(self, waitTime, locatorMode, Locator):
     element = None
     if   locatorMode == LocatorMode.ID:
          element = WebDriverWait(self.driver, waitTime).\
                  until(EC.visibility_of_element_located((By.ID, Locator)))
     elif locatorMode == LocatorMode.NAME:
          element = WebDriverWait(self.driver, waitTime).\
                  until(EC.visibility_of_element_located((By.NAME, Locator)))
     elif locatorMode == LocatorMode.XPATH:
          element = WebDriverWait(self.driver, waitTime).\
                  until(EC.visibility_of_element_located((By.XPATH, Locator)))
     elif locatorMode == LocatorMode.CSS_SELECTOR:
          element = WebDriverWait(self.driver, waitTime).\
                  until(EC.visibility_of_element_located((By.CSS_SELECTOR, Locator)))
     else:
         raise Exception("Unsupported locator strategy.")
     return element


 def wait_until_element_clickable(self, waitTime, locatorMode, Locator):
     element = None
     if   locatorMode == LocatorMode.ID:
          element = WebDriverWait(self.driver, waitTime).\
                  until(EC.element_to_be_clickable((By.ID, Locator)))
     elif locatorMode == LocatorMode.NAME:
          element = WebDriverWait(self.driver, waitTime).\
                  until(EC.element_to_be_clickable((By.NAME, Locator)))
     elif locatorMode == LocatorMode.XPATH:
          element = WebDriverWait(self.driver, waitTime).\
                  until(EC.element_to_be_clickable((By.XPATH, Locator)))
     elif locatorMode == LocatorMode.CSS_SELECTOR:
          element = WebDriverWait(self.driver, waitTime).\
                  until(EC.element_to_be_clickable((By.CSS_SELECTOR, Locator)))
     else:
         raise Exception("Unsupported locator strategy.")
     return element



 def find_element(self, locatorMode, Locator):
     element = None
     if locatorMode == LocatorMode.ID:
        element = self.driver.find_element_by_id(Locator)
     elif locatorMode == LocatorMode.NAME:
        element = self.driver.find_element_by_name(Locator)
     elif locatorMode == LocatorMode.XPATH:
        element = self.driver.find_element_by_xpath(Locator)
     elif locatorMode == LocatorMode.CSS_SELECTOR:
        element = self.driver.find_element_by_css_selector(Locator)
     else:
        raise Exception("Unsupported locator strategy.")
     return element


 def fill_out_field(self, locatorMode, Locator, text):
     self.find_element(locatorMode, Locator).clear()
     self.find_element(locatorMode, Locator).send_keys(text)

 def click(self, waitTime, locatorMode, Locator):
     self.wait_until_element_clickable(waitTime, locatorMode, Locator).click()

【讨论】：

【解决方案4】：

你也可以试试/除外：

try:
    driver.find_element_by_xpath("//a[@id='form1']").click()  # will click element if visible

except:
    print "Element not visible."

【讨论】：

【解决方案5】：

is_displayed() != 可见

所以，如果元素不在屏幕之外，.click() 不起作用，但仍然“显示”

正确的步骤是你必须将元素滚动到屏幕中并且可见，然后单击（）

【讨论】：

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