1.通用代码演示

import time
import pandas as pd
from selenium import webdriver  # 调用浏览器驱动器
from selenium.webdriver.common.by import By
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.support.select import Select
from selenium.common.exceptions import NoSuchElementException

webdriver_path = r"D:\Download\IdmDownload\chromedriver-win64\chromedriver.exe" # 替换为自己的ChromeDrive地址
user_data_dir = r"--user-data-dir=C:\\Users\\fjwyz\\AppData\\Local\\Google\\Chrome\\User Data" # 替换为自己的用户数据目录
option = webdriver.ChromeOptions()
# options.add_argument ( "--headless") # 开启无界面模式
option.add_argument(user_data_dir)
service = Service(executable_path=webdriver_path)
driver = webdriver.Chrome(service=service, options=option)
url = 'https://www.baidu.com'
drive.get(url)

2.报错修改

2.1 chromedrive与chrome版本不匹配

报错信息如下

chromedrive下载地址

https://googlechromelabs.github.io/chrome-for-testing/

2.2 未定位到元素

报错信息如下

3.技术

3.1下拉选择框

from selenium import webdriverd
from selenium.webdriver.support.ui import Select

driver = webdriver.Firefox()
driver.get('http://sahitest.com/demo/selectTest.htm')

s1 = Select(driver.find_element_by_id('s1Id'))  # 实例化Select

s1.select_by_index(1)  # 选择第二项选项：o1
s1.select_by_value("o2")  # 选择value="o2"的项
s1.select_by_visible_text("o3")  # 选择text="o3"的值，即在下拉时我们可以看到的文本

driver.quit()