You are using pip version 9.0.1, however version 19.0.2 is available. You should consider upgrading
在windows下使用pip安装时出现提示:Youareusingpipversion9.0.1,howeverversion19.0.2isavailable.Youshouldconsiderupgradingviathe‘python-mpipinstall--upgradepip’command.说明pip版本太低,这时需要使用python-mpipinstall--upgradepip命