xpath 或运算

model_node_list = self.driver.find_elements_by_xpath(                '//*[@id="cc"]/div[6]/div[1]/ul/li/a[1]|//*[@id="cc"]/div[6]/div[2]/ul/li/a[1]')

获取父节点

t=node.find_element_by_xpath('..')

模拟hover事件

from selenium import webdriverfrom selenium.webdriver import ActionChainsfrom mysqlHelper import MysqlHeplerclass Proccessor:    def __init__(self):        self.driver = webdriver.Chrome("C:\\software\\chromedriver_win32\\chromedriver.exe")        self.cnt = True        pass    def start(self):        self.driver.maximize_window()        self.driver.get("http://www.mtmchina.cn")        node = self.driver.find_element('//*[@id="brands"]')        model_hover = ActionChains(self.driver).move_to_element(node)        model_hover.perform()proccessor = Proccessor()proccessor.start()

根据css属性选择节点

model_node_list = self.driver.find_elements_by_xpath('//*[@id="productfinder"]/ul/li[contains(@style,"display: block")]')

获取某一个元素下面的子元素

self.driver.maximize_window()        self.driver.get("http://www.mtmchina.cn")        li_node_list = self.driver.find_elements_by_xpath('//*[@id="productfinder"]/ul[2]/li')        link_num = 1        for li in li_node_list:        #获取当前元素下面的ａ元素            a = li.find_element_by_css_selector('a')            href = a.get_attribute('href')            if href == "http://www.mtmchina.cn/#":                continue            self.url_list.append(href)            print(li.text, href)            link_num += 1        print("总连接", link_num)

获取节点的class

cl = li.get_attribute("class")

设置节点Id

self.driver.execute_script('arguments[0].setAttribute("id","nurmemet_img_id");', img)

sel_items = self.driver.find_elements_by_xpath(                    '//*[@id="content_container"]/div[1]/a[contains(@class, "slider_image_selected")]')

info_side=self.driver.find_element_by_class_name("information-side")#information-side 下面的节点h1h1=info_side.find_element_by_css_selector("h1")# information-side下面的节点h2h2=info_side.find_element_by_css_selector("h2")#information-side 下面的节点clearfixclearfix=info_side.find_element_by_css_selector(".clearfix");#information-side 下面的节点product-feautured-specificationul=info_side.find_element_by_css_selector(".product-feautured-specification");

等待元素的出现

from selenium.webdriver.common.by import Byfrom selenium.webdriver.support.wait import WebDriverWaitfrom selenium.webdriver.support import expected_conditions as ECwait = WebDriverWait(self.driver, 40)            element = wait.until(EC.element_to_be_clickable((By.CLASS_NAME, 'information-side')))