一、PythonInstall(兼容python2/python3)python3(python-3.6.8-amd64.exe)install--D:\Python36python2(python-2.7.16.amd64.msi)install--D:\Python27参考URL:https://blog.csdn.net/zunguitiancheng/article/details/126762742二、python2/python3及pip2/pip3共存问题解决参考URL：https://www.cnblogs.com/MoZiYa/p/16690252.htmlC:\Users\