创建和修改用户目录下的 .condarc 文件。Windows 系统的用户无法直接创建名为 .condarc 的文件，可先执行 conda config --set show_channel_urls yes 生成该文件之后再修改。

然后在用户目录找到.condarc 文件，如Windows用户地址为C:\Users\xxx

打开.condarc 文件，把如下内容替换原有的即可:

北京外国语大学开源软件镜像站
https://mirrors.bfsu.edu.cn/
注：强烈推荐！！！2020-05-02 上线，清华大学开源软件镜像站的姐妹站，下载体验极佳.

  1. channels:
  3.   - defaults
  4.     show_channel_urls: true
  5.     channel_alias: https://mirrors.bfsu.edu.cn/anaconda
  6.     default_channels:
  7.   - https://mirrors.bfsu.edu.cn/anaconda/pkgs/main
  8.   - https://mirrors.bfsu.edu.cn/anaconda/pkgs/free
  9.   - https://mirrors.bfsu.edu.cn/anaconda/pkgs/r
  10.   - https://mirrors.bfsu.edu.cn/anaconda/pkgs/pro
  11.   - https://mirrors.bfsu.edu.cn/anaconda/pkgs/msys2
  12.     custom_channels:
  13.       conda-forge: https://mirrors.bfsu.edu.cn/anaconda/cloud
  14.       msys2: https://mirrors.bfsu.edu.cn/anaconda/cloud
  15.       bioconda: https://mirrors.bfsu.edu.cn/anaconda/cloud
  16.       menpo: https://mirrors.bfsu.edu.cn/anaconda/cloud
  17.       pytorch: https://mirrors.bfsu.edu.cn/anaconda/cloud
  18.       simpleitk: https://mirrors.bfsu.edu.cn/anaconda/cloud

上海交通大学开源软件镜像站
https://mirrors.sjtug.sjtu.edu.cn/

  1. channels:
  3.   - defaults
  4.     show_channel_urls: true
  5.     channel_alias: https://anaconda.mirrors.sjtug.sjtu.edu.cn/
  6.     default_channels:
  7.   - https://anaconda.mirrors.sjtug.sjtu.edu.cn/pkgs/main
  8.   - https://anaconda.mirrors.sjtug.sjtu.edu.cn/pkgs/free
  9.   - https://anaconda.mirrors.sjtug.sjtu.edu.cn/pkgs/mro
  10.   - https://anaconda.mirrors.sjtug.sjtu.edu.cn/pkgs/msys2
  11.   - https://anaconda.mirrors.sjtug.sjtu.edu.cn/pkgs/pro
  12.   - https://anaconda.mirrors.sjtug.sjtu.edu.cn/pkgs/r
  13.     custom_channels:
  14.       conda-forge: https://anaconda.mirrors.sjtug.sjtu.edu.cn/conda-forge
  15.       soumith: https://anaconda.mirrors.sjtug.sjtu.edu.cn/cloud/soumith
  16.       bioconda: https://anaconda.mirrors.sjtug.sjtu.edu.cn/cloud/bioconda
  17.       menpo: https://anaconda.mirrors.sjtug.sjtu.edu.cn/cloud/menpo
  18.       viscid-hub: https://anaconda.mirrors.sjtug.sjtu.edu.cn/cloud/viscid-hub
  19.       atztogo: https://anaconda.mirrors.sjtug.sjtu.edu.cn/cloud/atztogo

清华大学开源软件镜像站
https://mirror.tuna.tsinghua.edu.cn/

  1. channels:
  3.   - defaults
  4.     show_channel_urls: true
  5.     channel_alias: https://mirrors.tuna.tsinghua.edu.cn/anaconda
  6.     default_channels:
  7.   - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
  8.   - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
  9.   - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r
  10.   - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/pro
  11.   - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2
  12.     custom_channels:
  13.       conda-forge: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  14.       msys2: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  15.       bioconda: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  16.       menpo: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  17.       pytorch: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  18.       simpleitk: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud

最后，运行 conda clean -i 清除索引缓存即可.

注意：如果遇到如下错误，请把上面的链接https改成http

  1. CondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2/win-64/repodata.json>

conda 添加与删除镜像源

  1. conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
  3. # 设置搜索时显示通道地址
  4. conda config --set show_channel_urls yes
  5. # 换回default
  6. conda config --remove-key channels