Python下载地址https://www.python.org/downloads/
Firefox浏览器对应geckodriver下载地址:https://github.com/mozilla/geckodriver/releases
Chrome浏览器对应chromedriver下载地址https://npm.taobao.org/mirrors/chromedriver/或者http://chromedriver.storage.googleapis.com/index.html
IE浏览器对应IEDriverServer下载地址http://selenium-release.storage.googleapis.com/index.html
slenium离线安装包下载地址https://pypi.org/project/selenium/#files,进入后在download files中可下载
其实进入这个网址https://pypi.org/project/selenium/ 即可看到如下网址