anaconda安装

https://mirror.tuna.tsinghua.edu.cn/help/anaconda/
ps:清华大学已经关闭anaconda的镜像。

Ananconda更改为国内源

Installing conda packages
conda install package-name=2.3.4

manage-environments

If you'd prefer that conda's base environment not be activated on startup,
   set the auto_activate_base parameter to false:

conda config --set auto_activate_base false