python - xpath返回多个结果，python中如何处理

Question

我已经使用 python 启动了 selenium。我可以使用 find_element_by_id 更改消息文本。我想对 find_element_by_xpath 执行相同的操作，但这并不成功，因为 xpath 有两个实例。想尝试一下以了解 xpath。

我想使用 python 对页面进行网页抓取，其中我需要清楚地了解主要需要转到下一页的 Xpath 的使用情况。

#This code works:
import time
import requests
import requests
from selenium import webdriver
driver = webdriver.Chrome()
url = "http://www.seleniumeasy.com/test/basic-first-form-demo.html"
driver.get(url)
eleUserMessage = driver.find_element_by_id("user-message")
eleUserMessage.clear()
eleUserMessage.send_keys("Testing Python")
time.sleep(2)
driver.close()
#This works fine. I wish to do the same with xpath. 
#I inspect the the Input box in chrome, copy the xpath '//*[@id="user-message"]' which seems to refer to the other box as well.
# I wish to use xpath method to write text in this box as follows which does not work.

driver = webdriver.Chrome()
url = "http://www.seleniumeasy.com/test/basic-first-form-demo.html"
driver.get(url)
eleUserMessage = driver.find_elements_by_xpath('//*[@id="user-message"]')
eleUserMessage.clear()
eleUserMessage.send_keys("Test Python")
time.sleep(2)
driver.close()

Answer 1

要详细说明我的评论，您可以使用如下列表:

eleUserMessage_list = driver.find_elements_by_xpath('//*[@id="user-message"]')
my_desired_element = eleUserMessage_list[0] # or maybe [1]
my_desired_element.clear()
my_desired_element.send_keys("Test Python")
time.sleep(2)

find_elements_by_xpath 和 find_element_by_xpath 之间的唯一真正区别是第一个选项返回需要索引的列表。一旦被索引，它的工作方式与运行第二个选项相同!