install chrome webdirver
After downloading chrome webdirver, place it in the /usr/bin directory of the macOS system. You can open the directory through Finder, or you can open it with a command
cd /usr/bin
open .
to open the directory.
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Chrome webdirver version comparison table
Reprinted: gray blue
chrome webdirver download address
http://chromedriver.storage.googleapis.com/index.html