学习selenium.md

Drivers

Firefox

1. 因为MacOS需要数字认证，火狐暂不可用

Chrome

1. https://chromedriver.chromium.org/downloads
   • If you are using Chrome version 104, please download ChromeDriver 104.0.5112.79 2. chrome浏览器——设置——关于Chrome，找到浏览器版本，下载对应driver
2. chrome browser和driver版本自动保持一致
   • 参考synchronize_browser_driver_ver.py
   • 脚本可以自动下载和browser版本一致的driver，运行后找到driver路径：
   • /Users/admin/.wdm/drivers/chromedriver/mac64/104.0.5112/chromedriver
3. driver环境变量设置
   • https://www.selenium.dev/documentation/webdriver/getting_started/install_drivers/#quick-reference
   • To see what directories are already on PATH, open a Terminal and execute:
   • echo $PATH
   • If the location to your driver is not already in a directory listed, you can add a new directory to PATH:
   • echo 'export PATH=$PATH:/Users/admin/.wdm/drivers/chromedriver/mac64/104.0.5112/chromedriver' >> ~/.zshenv
   • source ~/.zshenv
   • echo $PATH 再次查看系统路径，发现driver路径已经被写入到系统路径中
   • You can test if it has been added correctly by starting the driver:
   • chromedriver, 如果失败也不要紧，继续尝试：
   • https://stackoverflow.com/questions/39428042/use-selenium-with-chromedriver-on-mac
   • brew install chromedriver
   • brew update chromedriver， 注意chrome driver的版本号和chrome browser版本号要一致
   • 此时在bash界面直接输入chromedriver应该可以启动driver

selenium免登录

1. 手动输入用户名、密码等，登陆上目标网页
2. 把chromedriver可执行文件所在目录设置为系统目录，使得在bash页面可以直接打开chromedriver程序，参考上一步
3. 在.py文件中设置，可以直接用selenium在已经登陆的网页上进行操作
4. 参考：
   • https://www.cnblogs.com/yoyoketang/p/15132889.html
   • https://www.cnblogs.com/songzhenhua/p/12842919.html
   • https://stackoverflow.com/questions/8344776/can-selenium-interact-with-an-existing-browser-session
   • https://cosmocode.io/how-to-connect-selenium-to-an-existing-browser-that-was-opened-manually/
   • https://www.csdn.net/tags/NtzaAg2sMDkzOS1ibG9n.html

用selenium操纵网页页面

官网参考

• https://www.selenium.dev/documentation/webdriver/getting_started/first_script/