pip install sphinx
pip install sphinx_rtd_theme
pip install sphinx-autobuild
pip install recommonmark

cd ./doc
sphinx-quickstart

Enter the root path for documentation.
> Root path for the documentation [.]:

You have two options for placing the build directory for Sphinx output.
Either, you use a directory "_build" within the root path, or you separate
"source" and "build" directories within the root path.
> Separate source and build directories (y/n) [n]:

Inside the root directory, two more directories will be created; "_templates"
for custom HTML templates and "_static" for custom stylesheets and other static
files. You can enter another prefix (such as ".") to replace the underscore.
> Name prefix for templates and static dir [_]:

The project name will occur in several places in the built documentation.
> Project name: Sphinx-test
> Author name(s): test

Sphinx has the notion of a "version" and a "release" for the
software. Each version can have multiple releases. For example, for
Python the version is something like 2.5 or 3.0, while the release is
something like 2.5.1 or 3.0a1.  If you don't need this dual structure,
just set both to the same value.
> Project version []: 1.0.0
> Project release [1.0.0]:

If the documents are to be written in a language other than English,
you can select a language here by its language code. Sphinx will then
translate text that it generates into that language.

For a list of supported codes, see
http://sphinx-doc.org/config.html#confval-language.
> Project language [en]:

The file name suffix for source files. Commonly, this is either ".txt"
or ".rst".  Only files with this suffix are considered documents.
> Source file suffix [.rst]:

One document is special in that it is considered the top node of the
"contents tree", that is, it is the root of the hierarchical structure
of the documents. Normally, this is "index", but if your "index"
document is a custom template, you can also set this to another filename.
> Name of your master document (without suffix) [index]:

Sphinx can also add configuration for epub output:
> Do you want to use the epub builder (y/n) [n]:

Please indicate if you want to use one of the following Sphinx extensions:
> autodoc: automatically insert docstrings from modules (y/n) [n]: y
> doctest: automatically test code snippets in doctest blocks (y/n) [n]: y
> intersphinx: link between Sphinx documentation of different projects (y/n) [n]: y
> todo: write "todo" entries that can be shown or hidden on build (y/n) [n]: y
> coverage: checks for documentation coverage (y/n) [n]: y
> imgmath: include math, rendered as PNG or SVG images (y/n) [n]: y
> mathjax: include math, rendered in the browser by MathJax (y/n) [n]: y
Note: imgmath and mathjax cannot be enabled at the same time.
imgmath has been deselected.
> ifconfig: conditional inclusion of content based on config values (y/n) [n]: y
> viewcode: include links to the source code of documented Python objects (y/n) [n]: y
> githubpages: create .nojekyll file to publish the document on GitHub pages (y/n) [n]: n

A Makefile and a Windows command file can be generated for you so that you
only have to run e.g. `make html' instead of invoking sphinx-build
directly.
> Create Makefile? (y/n) [y]: y
> Create Windows command file? (y/n) [y]: y

Creating file ./conf.py.
Creating file ./index.rst,.md.
Creating file ./Makefile.
Creating file ./make.bat.

Finished: An initial directory structure has been created.

You should now populate your master file ./index.rst,.md and create other documentation
source files. Use the Makefile to build the docs, like so:
   make builder
where "builder" is one of the supported builders, e.g. html, latex or linkcheck.

├── build
├── make.bat
├── Makefile
└── source
    ├── conf.py
    ├── index.rst
    ├── _static
    └── _templates

build:用来存放通过make html生成文档网页文件的目录
source：存放用于生成文档的源文件
conf.py: Sphinx的配置文件
index.rst: 主文档

.. toctree::
   :maxdepth: 2

.. toctree::
   :maxdepth: 2

   tutorial.md
   ...

pip install recommonmark

pip install sphinx_rtd_theme

from recommonmark.parser import CommonMarkParser
source_parsers = {
    '.md': CommonMarkParser,
}
source_suffix = ['.rst', '.md']

import os
import sys
from recommonmark.parser import CommonMarkParser
sys.path.insert(0, os.path.abspath('../../src'))

extensions = [
   'sphinx.ext.autodoc',
   'sphinx.ext.doctest',
   'sphinx.ext.intersphinx',
   'sphinx.ext.todo',
   'sphinx.ext.coverage',
   'sphinx.ext.mathjax',
   'sphinx.ext.ifconfig',
   'sphinx.ext.viewcode',
   'sphinx.ext.githubpages',
   'sphinxcontrib.fulltoc',
 ]

html_theme = 'sphinx_rtd_theme'

class Cat:
    """
   Cat class A animal #intro

   :cvar str name: the cat's name
   :cvar int size: the cat's size
   :cvar int age: the cat's age
   """
    def __init__(self, name, size, age):
        """
       class init function

       :param str name: cat's name
       :param int size: cat's size
       :param int age: cat's age
       """
        self.name = name
        self.size = size
        self.age = age

def dummy_print(something):
    """
   a print function which is the same as the original func

   :param str something: a str you want to print
   :return: no return

   这是一个简单的例子：

   Example
   -------
   >>> dummy_print("hello")
   hello
   """
    print(something)

sphinx-apidoc -f -o ./source ../src/

make clean
make html

Welcome to learn_sphinx's documentation!
========================================

.. toctree::
   :maxdepth: 2
   :caption: Contents:

   newpage.md


Indices and tables
==================

* :ref:`genindex`
* :ref:`modindex`
* :ref:`search`

pandoc -s -t rst --toc newpage.md -o newpage.rst

Welcome to learn_sphinx's documentation!
========================================

.. toctree::
   :maxdepth: 2
   :caption: Contents:

   newpage.rst

![test.jpg](./imgs/test.png)