学习目的:
掌握显示等待
掌握二次封装
正式步骤:
step1:显示等待的代码示例
# -*- coding:utf-8 -*- from selenium import webdriver from selenium.webdriver.support.ui import WebDriverWait import time import os dr = webdriver.Chrome() url = 'http://renren.com/' dr.get(url) # dr 表示打卡浏览器 # 30 表示超时总时长 30s # 1 表示循环查询时间,默认时间间隔0.5s # lambda x : x.find_element_by_xpath('//*[@id="email"]') 默认的官方格式,照旧 x = WebDriverWait(dr,30,1).until(lambda x : x.find_element_by_xpath('//*[@id="email"]')) y = WebDriverWait(dr,30,1).until(lambda x : x.find_element_by_xpath('//*[@id="password"]')) z = WebDriverWait(dr,30,1).until(lambda x : x.find_element_by_xpath('//*[@id="login"]')) x.send_keys('308@qq.com') y.send_keys('*******') z.click()
step2: 二次封装
# -*- coding:utf-8 -*- from selenium import webdriver from selenium.webdriver.support.ui import WebDriverWait from selenium.webdriver.common.by import By import time import os class xianshidengdai(): def __init__(self,driver): self.driver = driver self.timeout = 30 self.t = 0.5 def findelement(self,locator): element = WebDriverWait(self.driver,self.timeout,self.t).until(lambda x : x.find_element(*locator)) return element if __name__ == "__main__": driver = webdriver.Chrome() driver.get('http://renren.com') test = xianshidengdai(driver) loc1 = (By.XPATH ,'//*[@id="email"]') test.findelement(loc1).send_keys('***') driver.close()