优化这段XPATH://*[@id='mybody']/div[36]/div[2]/div/div/div[2]/div/div/div[8]/textarea
时间: 2023-09-21 18:06:26 浏览: 39
可以尝试使用相对路径来优化这个XPATH,如下所示:
```//div[@id='mybody']//div[2]//div[@class='some-class']//textarea```
其中,`//`表示可以匹配任意深度的子节点,`[@attribute='value']`表示匹配具有某个特定属性和值的节点。这样,就不需要使用绝对路径,使得XPATH更加灵活和稳定。
相关问题
优化这段代码driver = webdriver.Chrome() driver.get("http://cjwxb-test.dianpusoft.cn/userLogin") driver.get("http://cjwxb-test.dianpusoft.cn/new-interact/interact/setActivityTemplate?activityType=10021") time.sleep(3) driver.find_element(By.XPATH, '//*[@id="setActivityTemplate"]/div/div[2]/form/div[3]/div[1]/div').click() time.sleep(2) driver.find_element(By.XPATH, '//*[@id="setActivityTemplate"]/div/div[2]/form/div[3]/div[1]/div/div/button').click() time.sleep(2) driver.find_element(By.XPATH, '//*[@id="editTemplatePage"]/div/div[3]/div[2]/button[2]').click() driver.find_element(By.XPATH, '//*[@id="activitySetting1 dataForm"]/div/div[3]/form/div[1]/div/div/div[2]/div/input').clear() time.sleep(2) driver.find_element(By.XPATH, '//*[@id="activitySetting1 dataForm"]/div/div[3]/form/div[1]/div/div/div[2]/div/input').send_keys("AT") driver.find_element(By.XPATH, '//*[@id="activitySetting1 dataForm"]/div/div[3]/form/div[3]/div/div/div[2]/label[2]/span[1]/span').click() driver.find_element(By.XPATH, '//*[@id="activitySetting1 dataForm"]/div/div[3]/form/div[3]/div/div/div[3]/div[2]/label/span[1]/span').click() win32api.mouse_event(win32con.MOUSEEVENTF_WHEEL, 0, 0, -1000) driver.find_element(By.XPATH, '//*[@id="activitySetting1 dataForm"]/div/div[4]/div/form/div[1]/div[2]/div/div[1]/div/span[2]').click() driver.find_element(By.XPATH, '//*[@id="activitySetting1 dataForm"]/div/div[4]/div/form/div[2]/div/button/span').click()
可以尝试以下优化方式:
1. 使用显式等待代替 time.sleep(),可以更加精准地等待页面元素的加载,提高代码的执行效率。
2. 将重复的元素定位代码提取出来,封装成函数,减少代码冗余。
3. 将多个操作封装成一个函数,提高代码的可读性和可维护性。
下面是优化后的代码:
```python
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import win32api
import win32con
def wait_for_element(driver, locator):
return WebDriverWait(driver, 10).until(EC.presence_of_element_located(locator))
def click_element(driver, locator):
element = wait_for_element(driver, locator)
element.click()
def set_text(driver, locator, text):
element = wait_for_element(driver, locator)
element.clear()
element.send_keys(text)
def scroll_down(driver):
win32api.mouse_event(win32con.MOUSEEVENTF_WHEEL, 0, 0, -1000)
def set_activity_template(driver):
driver.get("http://cjwxb-test.dianpusoft.cn/new-interact/interact/setActivityTemplate?activityType=10021")
click_element(driver, (By.XPATH, '//*[@id="setActivityTemplate"]/div/div[2]/form/div[3]/div[1]/div'))
click_element(driver, (By.XPATH, '//*[@id="setActivityTemplate"]/div/div[2]/form/div[3]/div[1]/div/div/button'))
click_element(driver, (By.XPATH, '//*[@id="editTemplatePage"]/div/div[3]/div[2]/button[2]'))
set_text(driver, (By.XPATH, '//*[@id="activitySetting1 dataForm"]/div/div[3]/form/div[1]/div/div/div[2]/div/input'), "AT")
click_element(driver, (By.XPATH, '//*[@id="activitySetting1 dataForm"]/div/div[3]/form/div[3]/div/div/div[2]/label[2]/span[1]/span'))
click_element(driver, (By.XPATH, '//*[@id="activitySetting1 dataForm"]/div/div[3]/form/div[3]/div/div/div[3]/div[2]/label/span[1]/span'))
scroll_down(driver)
click_element(driver, (By.XPATH, '//*[@id="activitySetting1 dataForm"]/div/div[4]/div/form/div[1]/div[2]/div/div[1]/div/span[2]'))
click_element(driver, (By.XPATH, '//*[@id="activitySetting1 dataForm"]/div/div[4]/div/form/div[2]/div/button/span'))
driver = webdriver.Chrome()
driver.get("http://cjwxb-test.dianpusoft.cn/userLogin")
set_activity_template(driver)
```
为什么p = tree.xpath('//*[@id="chain-graph"]')的结果是[<Element div at 0x2739301ce50>],但是p = tree.xpath('//*[@id="chain-graph"]')[0]的结果是 索引超出范围
这是因为 `tree.xpath('//*[@id="chain-graph"]')` 返回的是一个列表,包含了所有匹配到的元素,而不是单个元素。如果这个元素不存在,则返回一个空列表。因此,你需要检查列表的长度,确保它不为空,才能使用索引来获取元素。
当你写 `p = tree.xpath('//*[@id="chain-graph"]')[0]` 时,如果列表为空,那么访问第一个元素就会导致索引超出范围的错误。所以,正确的做法是先判断列表是否为空,然后再通过索引获取元素:
```python
p_list = tree.xpath('//*[@id="chain-graph"]')
if len(p_list) > 0:
p = p_list[0]
# do something with p
else:
# handle the case where the element doesn't exist
```