conda镜像

转自https://blog.csdn.net/guilutian0541/article/details/81004769
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
conda config --set show_channel_urls yes
conda config --remove-key channels