python xpath selenium

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 webdriver
from selenium.webdriver import ActionChains

from mysqlHelper import MysqlHepler

class 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h1
h1=info_side.find_element_by_css_selector("h1")
# information-side下面的节点h2
h2=info_side.find_element_by_css_selector("h2")
#information-side 下面的节点clearfix
clearfix=info_side.find_element_by_css_selector(".clearfix");
#information-side 下面的节点product-feautured-specification
ul=info_side.find_element_by_css_selector(".product-feautured-specification");

等待元素的出现

from selenium.webdriver.common.by import By
from selenium.webdriver.support.wait import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

wait = WebDriverWait(self.driver, 40)
            element = wait.until(EC.element_to_be_clickable((By.CLASS_NAME, 'information-side')))