资源整理：https://blog.csdn.net/zV3e189oS5c0tSknrBCL/article/details/82112854
1.SQLAlchemy
https://www.cnblogs.com/mrchige/p/6389588.html
http://docs.sqlalchemy.org/en/latest/orm/tutorial.html#querying
flask_sqlalchemy
http://www.pythondoc.com/flask-sqlalchemy/quickstart.html
2.webargs
https://webargs.readthedocs.io/en/latest/quickstart.html#basic-usage
JSON
flask 框架：
http://www.bjhee.com/flask-ad9.html
http://www.bjhee.com/flask-ad9.html
marshmallow
（marshmallow是一个用来将复杂的orm对象与python原生数据类型之间相互转换的库，简而言之，就是实现object -> dict， objects -> list， string -> dict和 string -> list）
https://marshmallow.readthedocs.io/en/latest/index.html
https://marshmallow.readthedocs.io/en/latest/api_reference.html#module-marshmallow.fields
https://www.jianshu.com/p/594865f0681b
Flask + PyJWT
https://www.cnblogs.com/xiekeli/p/5607107.html
postgre
https://www.yiibai.com/postgresql/postgresql-syntax.html
mongo
https://www.jianshu.com/p/ab13a75354ab
SQL
http://www.w3school.com.cn/sql/sql_groupby.asp
Redis
https://www.jianshu.com/p/5ac4d704f59a
http://try.redis.io/
（在这个网站上可以直接使用Redis的一些基础的命令）
python基础知识
https://www.cnblogs.com/mrchige/tag/Python/default.html?page=4
练习的项目：