SQLAlchemy ORM¶
在这里，对象关系映射器 (Object Relational Mapper) 被介绍并完整描述。如果您想使用为您自动构建的高级 SQL 以及 Python 对象的自动持久化，请首先继续学习本教程。
Here, the Object Relational Mapper is introduced and fully described. If you want to work with higher-level SQL which is constructed automatically for you, as well as automated persistence of Python objects, proceed first to the tutorial.