selenium常用API的使用过程记录（包括自动登录）

from selenium import webdriver

chrome_options = webdriver.ChromeOptions()
chrome_options.add_experimental_option('prefs', {'profile.default_content_setting_values': {'images': 2, }})  # 设置浏览器无图片模式
chrome_options.add_argument(f'--proxy-server=200.200.200.52:8888')  #设置代理ip，这个是我随便写的ip

chrome = webdriver.Chrome(options=chrome_options)  # 创建selenium实例化

chrome.get('https://www.baidu.com/')

chrome.find_element_by_xpath('//*[@id="kw"]')   #定位好元素，主要是却定要做什么，这一步可以不要
chrome.find_element_by_xpath('//*[@id="kw"]') .send_keys('白某人')   #send_keys 主要是用来在输入框输入内容
chrome.find_element_by_link_text('百度一下').click()  # click 方法是点击
#定位元素的方法有很多，但是要注意点的是find_element  后面有没有s，有s的话是返回一个列表的

chrome.close()

from selenium import webdriver
driver = webdriver.Chrome('/path/to/chromedriver')  # 若已设置环境变量，可省略路径

driver.get('https://www.example.com')  # 打开网页
print(driver.title)                     # 获取网页标题
driver.quit()                           # 关闭浏览器并退出WebDriver会话

from selenium.webdriver.common.by import By
element_by_id = driver.find_element(By.ID, 'some-id')
element_by_name = driver.find_element(By.NAME, 'some-name')
element_by_xpath = driver.find_element(By.XPATH, '//div[@class="some-class"]')
element_by_css = driver.find_element(By.CSS_SELECTOR, 'div.some-class')

# 输入文本
search_box = driver.find_element(By.NAME, 'q')
search_box.send_keys('Selenium')
# 点击按钮
search_button = driver.find_element(By.NAME, 'btnK')
search_button.click()
# 清空文本框
search_box.clear()

from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
# 显示等待
element = WebDriverWait(driver, 10).until(
    EC.presence_of_element_located((By.ID, 'some-id'))
)
# 隐式等待
driver.implicitly_wait(10)  # 设置全局等待时间

from selenium.webdriver.support.ui import Select
select_element = driver.find_element(By.ID, 'dropdown')
select_object = Select(select_element)
select_object.select_by_index(1)        # 通过索引选择
select_object.select_by_value('value')  # 通过value属性选择
select_object.select_by_visible_text('Text')  # 通过可见文本选择

driver.execute_script('window.scrollTo(0, document.body.scrollHeight);')  # 滚动到底部

# 处理Alert弹窗
alert = driver.switch_to.alert
alert_text = alert.text
alert.accept()  # 点击'OK'
# 切换到iFrame
driver.switch_to.frame('frameName')
# 切换回主文档
driver.switch_to.default_content()
# 切换窗口
driver.switch_to.window(driver.window_handles[1])

attr_value = element.get_attribute('href')
css_value = element.value_of_css_property('color')

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.common.keys import Keys
driver = webdriver.Chrome('/path/to/chromedriver')
driver.get('https://www.somewebsite.com/login')
# 填写用户名和密码
username = driver.find_element(By.ID, 'username')
password = driver.find_element(By.ID, 'password')
username.send_keys('your_username')
password.send_keys('your_password')
# 点击登录
login_button = driver.find_element(By.ID, 'submit')
login_button.click()
# 等待登录成功的页面元素加载
wait = WebDriverWait(driver, 10)
logged_in_element = wait.until(EC.presence_of_element_located((By.ID, 'logged-in-message')))
print('登录成功!')
# 执行后续的自动化操作...
# 关闭浏览器
driver.quit()