selenium的问题

Question

我在学习selenium的过程中，编写如下程序：

from selenium import webdriver
from selenium.webdriver.edge.service import Service as EdgeService
from selenium.webdriver.common.by import By

options = webdriver.EdgeOptions()
service = EdgeService(executable_path='msedgedriver.exe')
browser = webdriver.Edge(service=service, options=options)
browser.get('https://www.taobao.com')

login_btn = browser.find_element(By.NAME, '登录')

运行报错：

请问要怎么修改

Answer 1

这个错误是页面上没有这个元素，打开浏览器，确实没有你写的这个登录按钮元素，你要定位的元素表达式写错了

from selenium import webdriver
from selenium.webdriver.edge.service import Service as EdgeService
from selenium.webdriver.common.by import By
from selenium.webdriver.support.wait import WebDriverWait
from selenium.webdriver.support import expected_conditions as ex

options = webdriver.EdgeOptions()
service = EdgeService(executable_path='msedgedriver.exe')
browser = webdriver.Edge(service=service, options=options)
browser.get('https://www.taobao.com')

WebDriverWait(driver, 15).until(ex.visibility_of_element_located((By.XPATH, "//a[text()='亲，请登录']")))    # 等待这个按钮的出现
login_btn = browser.find_element(By.XPATH, "//a[text()='亲，请登录']")