报错信息：File “c:/Users/冯宝东/Desktop/python/requests_open_browser.py”, line 15, in chrome_driver
session = res[‘sessionId’]
KeyError: ‘sessionId’

下面是cmd运行的信息：

C:\WINDOWS\system32>java -jar C:\Users\冯宝东\selenium-server-standalone-3.141.59.jar
11:04:03.209 INFO [GridLauncherV3.parse] - Selenium server version: 3.141.59, revision: e82be7d358
11:04:03.418 INFO [GridLauncherV3.lambda$buildLaunchers$3] - Launching a standalone Selenium Server on port 4444
2019-03-23 11:04:03.648:INFO::main: Logging initialized @2485ms to org.seleniumhq.jetty9.util.log.StdErrLog
11:04:04.239 INFO [WebDriverServlet.] - Initialising WebDriverServlet
11:04:04.482 INFO [SeleniumServer.boot] - Selenium Server is up and running on port 4444