1.virtualenv 配置和安装

首先确认安装了python。
快捷键win+r 打开cmd
1.virtualenv 配置和安装
输入，下载virtualenv

pip install virtualenv

出现下面提示说明安装成功！

Installing collected packages: virtualenv
Successfully installed virtualenv-16.4.3

1.virtualenv 配置和安装
virtualenv创建环境目录：
virtualenv（运行virtualenv） testvir（目录名）

C:\Users\stjas>virtualenv testvir
Using base prefix 'd:\\programdata\\anaconda3'
New python executable in C:\Users\stjas\testvir\Scripts\python.exe
Installing setuptools, pip, wheel...
done.

进入环境目录：运行activate.bat

C:\Users\stjas>cd testvir
C:\Users\stjas\testvir>cd Scripts
C:\Users\stjas\testvir\Scripts>activate.bat

查询环境中安装了那些库：pip list

(testvir) C:\Users\stjas\testvir\Scripts>pip list
Package    Version
---------- -------
pip        19.0.3
setuptools 40.8.0
wheel      0.33.1

退出环境目录：运行deactivate.bat

(testvir) C:\Users\stjas\testvir\Scripts>deactivate.bat

下载virtualenvwrapper：pip install virtualenvwrapper-win

C:\Users\stjas\testvir\Scripts>pip install virtualenvwrapper-win

出现下面安装成功：

Successfully built virtualenvwrapper-win
Installing collected packages: virtualenvwrapper-win
Successfully installed virtualenvwrapper-win-1.2.5

virtualenvwrapper创建环境目录：

C:\Users\stjas\testvir\Scripts>mkvirtualenv testvir2
 C:\Users\stjas\Envs is not a directory, creating
Using base prefix 'd:\\programdata\\anaconda3'
New python executable in C:\Users\stjas\Envs\testvir2\Scripts\python.exe
Installing setuptools, pip, wheel...
done.

退出虚拟环境：deactivate

(testvir2) C:\Users\stjas\testvir\Scripts>deactivate

查询虚拟环境：workon

Pass a name to activate one of the following virtualenvs:
==============================================================================
testvir2

进入某个虚拟环境：workon testvir2

C:\Users\stjas\testvir\Scripts>workon testvir2
(testvir2) C:\Users\stjas\testvir\Scripts>