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### 一、国内源下载
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https://mirrors.tuna.tsinghua.edu.cn/anaconda/archive/
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### 二、官网安装
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**1、首先进入官网 [https://repo.anaconda.com](https://repo.anaconda.com)，选择$View$ $All$ $Installers$**
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**2、这里是 $Anaconda$ 的各种安装包版本，$Anaconda3$就代表$Python3$的版本，后面是发行日期，我选择了2022.10的Windows版本，而且是64位的,下载到本地。**
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**3、运行安装包，然后跟着下面每一步操作。**
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这一步是安装路径，我是放在了$D$盘中的$Anaconda3$文件夹中。
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这一步显示默认环境是$Python3.9$，然后$install$
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等待安装，安装过程不会很长。
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去掉两个框中的勾，然后$Finish$完成，至此安装成功。
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**配置环境变量**
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添加安装目录及相应$bin$目录到$Path$
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```shell
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setx PATH "%PATH%;G:\Anaconda3;G:\Anaconda3\Scripts;G:\Anaconda3\Library\bin;G:\Anaconda3\Library\mingw-w64\bin" /M
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```
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**配置国内镜像源**
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查看当前配置的镜像源
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```
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conda config --show-sources
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```
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**输入下面命令配置为清华源**
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```
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conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
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conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/
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conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/
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```
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**4、测试是否安装成功**
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在菜单栏中打开$Anaconda$命令行，也就是$Anaconda$ $Prompt$（$anaconda3$）
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点击后，如果能在命令行左侧的括号中看到$base$，则代表安装成功！
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**5、创建和激活环境**
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`conda create -n py39 python=3.9`
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是创建$python3.9$版本，名称为$py39$的环境。这里环境名和$python$版本可以自己指定。
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输入$y$，然后回车进行下载，下载和安装完会提示$done$，像这样就是安装好了。
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**`conda activate py39`激活环境**
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可以看到前面由$base$变成$py39$了，这就表示我们进入了该环境，大家可以直接把环境理解成文件夹。
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**`conda deactivate` 退出环境**
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就和我们平时用$cmd$命令行时$cd$切换目录很类似。
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$Anaconda$的详细环境操作，可以看这里：[anaconda创建和删除环境](https://blog.csdn.net/qq_42257666/article/details/121435686)
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**查看已有的虚拟环境**
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```conda env list```
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