Create Virtual Environment

conda create -n your_env_name python=x.x

List all of env

conda env list 
conda info -e

Activate env

activate your_env_name

Update Conda

conda update conda

Close current env (Return default env)

deactivate env_name
或者`activate root`切回root环境
Linux下：source deactivate 

Delete env

conda remove -n your_env_name --all

Change default mirror origin

conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/
conda config --set show_channel_urls yes

Set default mirror origin

conda config --remove-key channels``