出现CondaHTTPError: HTTP 000 CONNECTION FAILED for url这个错误，直接重新配置源地址即可
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/linux-64/ conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/linux-64/ conda config --set show_channel_urls yes
查看已添加的源
conda config --show-sources
==> /home/lhw/.condarc <== channels: - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/ - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/linux-64/ - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/linux-64/ - defaults show_channel_urls: True