miniconda 换源（添加镜像）

1、查看当前镜像

(base) C:\Users\jcomhome>conda info

     active environment : base
    active env location : F:\miniconda\miniconda-install
            shell level : 1
       user config file : C:\Users\jcomhome\.condarc       # 配置文件位置
 populated config files :
          conda version : 4.10.3
    conda-build version : not installed
         python version : 3.9.5.final.0
       virtual packages : __cuda=8.0=0
                          __win=0=0
                          __archspec=1=x86_64
       base environment : F:\miniconda\miniconda-install  (writable)
      conda av data dir : F:\miniconda\miniconda-install\etc\conda
  conda av metadata url : None
           channel URLs : https://repo.anaconda.com/pkgs/main/win-64           # channel URLs 内容是当前镜像源，这里是 anaconda 镜像源
                          https://repo.anaconda.com/pkgs/main/noarch
                          https://repo.anaconda.com/pkgs/r/win-64
                          https://repo.anaconda.com/pkgs/r/noarch
                          https://repo.anaconda.com/pkgs/msys2/win-64
                          https://repo.anaconda.com/pkgs/msys2/noarch
          package cache : F:\miniconda\miniconda-install\pkgs
                          C:\Users\jcomhome\.conda\pkgs
                          C:\Users\jcomhome\AppData\Local\conda\conda\pkgs
       envs directories : F:\miniconda\miniconda-install\envs
                          C:\Users\jcomhome\.conda\envs
                          C:\Users\jcomhome\AppData\Local\conda\conda\envs
               platform : win-64
             user-agent : conda/4.10.3 requests/2.25.1 CPython/3.9.5 Windows/10 Windows/10.0.18362
          administrator : False
             netrc file : None
           offline mode : False

2、配置文件备份（防止修改过程出错）

(base) C:\Users\jcomhome>copy C:\Users\jcomhome\.condarc C:\Users\jcomhome\.condarc.bak
系统找不到指定的文件。

生成一下配置文件：conda config，再次查看备份

(base) C:\Users\jcomhome>conda config

(base) C:\Users\jcomhome>copy C:\Users\jcomhome\.condarc C:\Users\jcomhome\.condarc.bak
已复制         1 个文件。

3、修改配置文件

(base) C:\Users\jcomhome>conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/

(base) C:\Users\jcomhome>conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main

(base) C:\Users\jcomhome>conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r

(base) C:\Users\jcomhome>conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/pro

(base) C:\Users\jcomhome>conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2

查看是否添加上：

(base) C:\Users\jcomhome>conda info

     active environment : base
    active env location : F:\miniconda\miniconda-install
            shell level : 1
       user config file : C:\Users\jcomhome\.condarc
 populated config files : C:\Users\jcomhome\.condarc
          conda version : 4.10.3
    conda-build version : not installed
         python version : 3.9.5.final.0
       virtual packages : __cuda=8.0=0
                          __win=0=0
                          __archspec=1=x86_64
       base environment : F:\miniconda\miniconda-install  (writable)
      conda av data dir : F:\miniconda\miniconda-install\etc\conda
  conda av metadata url : None
           channel URLs : https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2/win-64
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2/noarch
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/pro/win-64
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/pro/noarch
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r/win-64
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r/noarch
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/win-64
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/noarch
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/win-64
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/noarch
                          https://repo.anaconda.com/pkgs/main/win-64
                          https://repo.anaconda.com/pkgs/main/noarch
                          https://repo.anaconda.com/pkgs/r/win-64
                          https://repo.anaconda.com/pkgs/r/noarch
                          https://repo.anaconda.com/pkgs/msys2/win-64
                          https://repo.anaconda.com/pkgs/msys2/noarch
          package cache : F:\miniconda\miniconda-install\pkgs
                          C:\Users\jcomhome\.conda\pkgs
                          C:\Users\jcomhome\AppData\Local\conda\conda\pkgs
       envs directories : F:\miniconda\miniconda-install\envs
                          C:\Users\jcomhome\.conda\envs
                          C:\Users\jcomhome\AppData\Local\conda\conda\envs
               platform : win-64
             user-agent : conda/4.10.3 requests/2.25.1 CPython/3.9.5 Windows/10 Windows/10.0.18362
          administrator : False
             netrc file : None
           offline mode : False

再次install包，查看安装时是否出现，出现新添加镜像，说明镜像修改成功