小书学习的主要方向是TensorFlow和Pytorch,今天就来安装一下Pytorch。
第一步：去官网看看
Pytorch官网：(https://pytorch.org/)
点击get started

第二步：选择与自己相匹配的版本，这里显示是我安装的选择。

复制命令到win10终端：
第三步：成功安装：

C:\Users\Shu\Desktop>pip3 install http://download.pytorch.org/whl/cpu/torch-0.4.1-cp36-cp36m-win_amd64.whl
Collecting torch==0.4.1 from http://download.pytorch.org/whl/cpu/torch-0.4.1-cp36-cp36m-win_amd64.whl
Downloading http://download.pytorch.org/whl/cpu/torch-0.4.1-cp36-cp36m-win_amd64.whl (55.9MB)
100% |████████████████████████████████| 55.9MB 2.9MB/s
Installing collected packages: torch
Successfully installed torch-0.4.1
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C:\Users\Shu\Desktop>pip3 install http://download.pytorch.org/whl/cpu/torch-0.4.1-cp36-cp36m-win_amd64.whl
Collecting torch==0.4.1 from http://download.pytorch.org/whl/cpu/torch-0.4.1-cp36-cp36m-win_amd64.whl
Downloading http://download.pytorch.org/whl/cpu/torch-0.4.1-cp36-cp36m-win_amd64.whl (55.9MB)
100% |████████████████████████████████| 55.9MB 2.9MB/s
Installing collected packages: torch
Successfully installed torch-0.4.1

C:\Users\Shu\Desktop>pip3 install torchvision
Collecting torchvision
Downloading https://files.pythonhosted.org/packages/ca/0d/f00b2885711e08bd71242ebe7b96561e6f6d01fdb4b9dcf4d37e2e13c5e1/torchvision-0.2.1-py2.py3-none-any.whl (54kB)
100% |████████████████████████████████| 61kB 120kB/s
Requirement already satisfied: numpy in c:\users\shu\appdata\local\programs\python\python36\lib\site-packages (from torchvision) (1.15.3)
Requirement already satisfied: six in c:\users\shu\appdata\local\programs\python\python36\lib\site-packages (from torchvision) (1.11.0)
Collecting pillow>=4.1.1 (from torchvision)
Downloading https://files.pythonhosted.org/packages/bd/39/c76eaf781343162bdb1cf4854cb3bd5947a87ee44363e5acd6c48d69c4a1/Pillow-5.3.0-cp36-cp36m-win_amd64.whl (1.6MB)
100% |████████████████████████████████| 1.6MB 81kB/s
Requirement already satisfied: torch in c:\users\shu\appdata\local\programs\python\python36\lib\site-packages (from torchvision) (0.4.1)
Installing collected packages: pillow, torchvision
Successfully installed pillow-5.3.0 torchvision-0.2.1
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谈笑间，pytorch就已经安装成功了。我这边开的热点，网速可能会快一些。
注：现在网上的教程大多是Anaconda方式 安装，谁让小书是小白呢，代码编辑器是sublime text 3,所以用的都是简单粗暴的方法。

第四步：(老规矩)测试一下：

C:\Users\Shu\Desktop>python
Python 3.6.4 (v3.6.4:d48eceb, Dec 19 2017, 06:54:40) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import pytorch
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'pytorch'
>>> import torch
>>>