wxya（个人网站）Python环境配置
python2和python3共存windows
安装python2和python3区分目录
都放入到系统变量Path中
C:\Users\w\.windows-build-tools\python27
C:\Users\w\.windows-build-tools\python27\Script
C:\Users\w\.windows-build-tools\python3
C:\Users\w\.windows-build-tools\python3\Script
给C:\Users\w\.windows-build-tools\python27下的python.exe复制一份改名python2.exe即可
powershell测试 python -V 和 python2 -V
mac m1
python2
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