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/

channels:

  - defaults
    show_channel_urls: true
    channel_alias: https://anaconda.mirrors.sjtug.sjtu.edu.cn/
    default_channels:
  - https://anaconda.mirrors.sjtug.sjtu.edu.cn/pkgs/main
  - https://anaconda.mirrors.sjtug.sjtu.edu.cn/pkgs/free
  - https://anaconda.mirrors.sjtug.sjtu.edu.cn/pkgs/mro
  - https://anaconda.mirrors.sjtug.sjtu.edu.cn/pkgs/msys2
  - https://anaconda.mirrors.sjtug.sjtu.edu.cn/pkgs/pro
  - https://anaconda.mirrors.sjtug.sjtu.edu.cn/pkgs/r
    custom_channels:
      conda-forge: https://anaconda.mirrors.sjtug.sjtu.edu.cn/conda-forge
      soumith: https://anaconda.mirrors.sjtug.sjtu.edu.cn/cloud/soumith
      bioconda: https://anaconda.mirrors.sjtug.sjtu.edu.cn/cloud/bioconda
      menpo: https://anaconda.mirrors.sjtug.sjtu.edu.cn/cloud/menpo
      viscid-hub: https://anaconda.mirrors.sjtug.sjtu.edu.cn/cloud/viscid-hub
      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/

channels:

  - defaults
    show_channel_urls: true
    channel_alias: https://mirrors.tuna.tsinghua.edu.cn/anaconda
    default_channels:
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/pro
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2
    custom_channels:
      conda-forge: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
      msys2: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
      bioconda: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
      menpo: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
      pytorch: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
      simpleitk: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud

最后，运行 conda clean -i 清除索引缓存即可.

ConfigurationLoadError: Unable to load configuration file.

删除.condarc.

注意：如果遇到如下错误，请把上面的链接https改成http

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

conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/

# 设置搜索时显示通道地址
conda config --set show_channel_urls yes
# 换回default
conda config --remove-key channels