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from selenium import webdriver
'''
# 禁止图片加载
options = webdriver.ChromeOptions()
prefs = {'profile.default_content_setting_values' : {'images' : 2}}
options.add_experimental_option('prefs',prefs)
driver = webdriver.Chrome(chrome_options = options)
'''
options = webdriver.ChromeOptions()
prefs = {'profile.default_content_setting_values' : {'images' : 2}}
options.add_experimental_option('prefs',prefs)
driver = webdriver.Chrome(chrome_options=options)
driver.get('https://www.baidu.com/')
# driver.quit()
from selenium import webdriver
from time import sleep
'''
设置浏览器以最大化的方式启动
options.add_argument("--start-maximized")
'''
options = webdriver.ChromeOptions()
options.add_argument("--start-maximized")
driver = webdriver.Chrome(chrome_options=options)
driver.get('https://www.baidu.com/')
sleep(3)
driver.quit()
from selenium import webdriver
from time import sleep
'''
指定driver的目录:executable_path=
'''
driver = webdriver.Chrome(executable_path='C:\Python\Python36\chromedriver.exe')
driver.get("http://www.baidu.com/")
sleep(3)
driver.quit()
from selenium import webdriver
from time import sleep
'''
封装高亮显示页面元素的方法;使用js代码,将页面元素对象的背景颜色设置为绿色,边框设置为红色;
"arguments[0].setAttribute('style', arguments[1]);", element,"background: green; border: 2px solid red;"
'''
def hightLightEle(driver, element):
    driver.execute_script("arguments[0].setAttribute('style', arguments[1]);", element,"background: green; border: 2px solid red;")
driver = webdriver.Chrome()
driver.get('https://www.baidu.com/')
ele = driver.find_element_by_id('kw')
hightLightEle(driver, ele)
sleep(3)
driver.quit()
import unittest
from selenium import webdriver
from time import sleep
'''
封装高亮显示页面元素的方法;使用js代码,将页面元素对象的背景颜色设置为绿色,边框设置为红色;
'''
def highLightElement(driver, element):
    driver.execute_script("arguments[0].setAttribute('style', arguments[1]);", element,
                          "background: green; border: 2px solid red;")
class TestDemo(unittest.TestCase):
    def setUp(self):
        self.driver = webdriver.Chrome()
    def test_Ele(self):
        url = "https://www.baidu.com/"
        self.driver.get(url)
        searchbox = self.driver.find_element_by_id('kw')
        sleep(3)
        highLightElement(self.driver, searchbox)
        sleep(3)
    def tearDown(self):
        self.driver.quit()
if __name__ == '__main__':
    unittest.main()