通过在cmd中输入命令

conda config --set show_channel_urls yes

然后在自己当前的用户名下就可以找到该文件，生成该文件时再进行修改

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

即可添加anaconda python免费仓库