Chrome各个版本对应的chromedriver版本：
ChromeDriver 79.0.3945.36 (2019-11-18)---------Supports Chrome version 79
ChromeDriver 78.0.3904.11 (2019-09-12)---------Supports Chrome version 78
ChromeDriver 77.0.3865.40 (2019-08-20)---------Supports Chrome version 77
ChromeDriver 76.0.3809.12 (2019-06-07)---------Supports Chrome version 76
ChromeDriver 75.0.3770.8 (2019-04-29)---------Supports Chrome version 75
ChromeDriver v74.0.3729.6 (2019-03-14)--------Supports Chrome v74
ChromeDriver v2.46 (2019-02-01)----------Supports Chrome v71-73
ChromeDriver v2.45 (2018-12-10)----------Supports Chrome v70-72
ChromeDriver v2.44 (2018-11-19)----------Supports Chrome v69-71
ChromeDriver v2.43 (2018-10-16)----------Supports Chrome v69-71
ChromeDriver v2.42 (2018-09-13)----------Supports Chrome v68-70
ChromeDriver v2.41 (2018-07-27)----------Supports Chrome v67-69
ChromeDriver v2.40 (2018-06-07)----------Supports Chrome v66-68
ChromeDriver v2.39 (2018-05-30)----------Supports Chrome v66-68
ChromeDriver v2.38 (2018-04-17)----------Supports Chrome v65-67
ChromeDriver v2.37 (2018-03-16)----------Supports Chrome v64-66
ChromeDriver v2.36 (2018-03-02)----------Supports Chrome v63-65
ChromeDriver v2.35 (2018-01-10)----------Supports Chrome v62-64
所有版本chrome下载：
http://www.slimjet.com/chrome/google-chrome-old-version.php
http://google_chrome.en.downloadastro.com/old_versions/
http://filehippo.com/zh/download_google_chrome/
http://www.chromedownloads.net/
所有版本chromedriver下载
http://chromedriver.storage.googleapis.com/index.html