selenium3浏览器驱动
各浏览器下载地址:
Firefox浏览器驱动:https://github.com/mozilla/geckodriver/releases
Chrome浏览器驱动:https://npm.taobao.org/mirrors/chromedriver
IE浏览器:http://selenium-release.storage.googleapis.com/index.html
Edge浏览器驱动:https://developer.microsoft.com/en-us/microsoft-edge/tools/webdriver/
Opera浏览器驱动:https://github.com/operasoftware/operachromiumdriver/releases