Python编程技巧：详解退出conda环境
https://www.python100.com/html/110499.html

 # 创建虚拟环境

~/anaconda3/bin/conda create -n name python=3.6
# 激活虚拟环境
source ~/anaconda3/bin/activate name
# 查看所有环境
conda env list
# 激活虚拟环境
conda activate name
# 退出当前虚拟环境
conda deactivate name