Python之Selenium(自动化浏览器测试)

1.安装selenium

pip install selenium -i https://pypi.tuna.tsinghua.edu.cn/simple

2.下载对应版本的浏览器驱动

http://npm.taobao.org/mirrors/chromedriver/

这是我的。

把解压后的驱动放在自己的python.exe 目录下。

3.测试code，打开一个网页，并获取网页的标题

from selenium.webdriver import Chrome


if __name__ == '__main__':
    web = Chrome()
    web.get("https://baidu.com")
    print(web.title)

4.一个小样例

from selenium.webdriver import Chrome


if __name__ == '__main__':
    web = Chrome()
    url = 'https://ac.nowcoder.com/acm/home'
    web.get(url)
	# 获取要点击的a标签
    el = web.find_element_by_xpath('/html/body/div/div[3]/div[1]/div[1]/div[1]/div/a')
	# 点击
    el.click()                          # "/html/body/div/div[3]/div[1]/div[2]/div[2]/div[2]/div[1]/h4/a"
    # 爬取想要的内容
    lists = web.find_elements_by_xpath("/html/body/div/div[3]/div[1]/div[2]/div[@class='platform-item js-item ']/div["
                                       "2]/div[1]/h4/a")
    print(len(lists))
    for i in lists:
        print(i.text)

5.自动输入并跳转

from selenium.webdriver import Chrome
from selenium.webdriver.common.keys import Keys
import time

if __name__ == '__main__':
    web = Chrome()
    url = 'https://ac.nowcoder.com/acm/home'
    web.get(url)

    el = web.find_element_by_xpath('/html/body/div/div[3]/div[1]/div[1]/div[1]/div/a')

    el.click()
    time.sleep(1)
    input_el = web.find_element_by_xpath('/html/body/div/div[3]/div[1]/div[1]/div[1]/form/input[1]')
    input_el.send_keys('牛客', Keys.ENTER)
    # 　do something