Install anaconda

1. Enter the official website of Anaconda：https://www.anaconda.com/
   
2. Left click download
3. Double left click the file after downloading,the result should be：
   
4. Keep clicking next util this part:
   Check add anaconda3 to my PATH environment varible
   
5. Installation done
   7. Check whether anaconda has been successfully installed：
   Search cmd on the left bottom of screen
   
   open cmd, type conda, conda has been successfully installed if it gives you like this:
   

Create conda environment

1. Create a new environment named tutorial (setup python version as 3.6)

   conda create -n tutorial python=3.6
   

   Successfully create：

Activate environment

1. Activate environment tutorial

   conda activate tutorial
   

   Successfully activate：
   

Install jupyter notebook

1. install

   conda install jupyter
   

2. open jupyter notebook

   jupyter notebook
   

   

Install pytorch

1. Enter the official website of pytorch：https://pytorch.org/
2. Choose the version you need, then copy the installation command.
   4. In cmd, activate the environment you would like to install pytorch into. Then enter the command you copied before.Here I use cpu version pytorch for an example:

   conda install pytorch torchvision torchaudio cpuonly -c pytorch
   

3. Check wether pytorch has been successfully installed：

   import torch
   torch.__version__
   

   The result should be like this if successfully installed：
   

Replace channel（If need）

Mirror channel is used when you can’t download some package due to the fire wall of China.

1. Create condarc file：

   conda config --add channels r
   

2. The condarc file should be in : /home/user/.condarc
3. Find the file and open it, the content of the file should be like this：
   
4. Use the content below to replace the content of condarc file：

   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