0.前言

最近对python很感兴趣，主要是想用它结合adb做一些android游戏的外挂，同时写一些小的爬虫，解决服务器端的内容问题。Selenium是一个自动化测试工具，可以操控浏览器模拟元素的点击和赋值。

1.分析

代开掘金网站，点击右上角的图标

之后在登录框输入用户名和密码，并点击登录

2.Selenium基本用法

2.1获得驱动

webdriver=webdriver.Chrome() 获得chrome浏览器的驱动

2.2元素定位

find_element_by_id find_element_by_name find_element_by_xpath find_element_by_link_text find_element_by_partial_link_text通过部分超链接定位 find_element_by_tag_name find_element_by_class_name find_element_by_css_selector

2.3元素事件

元素.click()模拟元素的点击事件元素.clear()清楚元素的值元素.send_keys(content)为元素赋值

2.4切换窗口

webdriver.switch_to.window(handle)

2.5

3.代码实现

def login(webdriver, url, login_xpath, username_xpath, user_name, password_xpath, password, login_btn_xpath):
    webdriver.get(url)
    if login_xpath is not None:
        login_btn = webdriver.find_element_by_xpath(login_xpath)
        login_btn.click()
        login_by_password(webdriver, username_xpath, user_name, password_xpath, password, login_btn_xpath)
    else:
        login_by_password(webdriver, username_xpath, user_name, password_xpath, password, login_btn_xpath)
        
    
        
def loginJueJin(webdriver, user_name, password, url='https://juejin.cn',
                login_xpath='//*[@id="juejin"]/div[2]/div/header/div/nav/ul/li[4]/span[1]',
                username_xpath='//*[@id="juejin"]/div[1]/div[3]/form/div[2]/div[1]/div[1]/input',
                password_xpath='//*[@id="juejin"]/div[1]/div[3]/form/div[2]/div[1]/div[2]/input',
                login_btn_xpath='//*[@id="juejin"]/div[1]/div[3]/form/div[2]/button'):
    login(webdriver, url, login_xpath, username_xpath, user_name, password_xpath, password, login_btn_xpath)L

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Python利用Selenium自动登录掘金