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@@ -1,2 +1,39 @@
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# sqlalchemy
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+数据库orm框架，
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+
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+类似项目：
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+
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+sqlmodel,
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+
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+## Usage
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+
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+```
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+# 创建一个 SQLAlchemy 模型
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+from sqlalchemy import Column, Integer, String, DateTime
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+from sqlalchemy.ext.declarative import declarative_base
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+
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+engine = create_engine(
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+ "mysql+pymysql://test:123456@192.168.1.1:3306/test?charset=utf8", echo=True
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+)
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+
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+# SessionLocal 实例用来操作数据库
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+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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+# 表需要继承 Base
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+Base = declarative_base()
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+
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+class User(Base):
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+ __tablename__ = 'users'
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+
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+ id = Column(Integer, primary_key=True)
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+ username = Column(String(50), unique=True)
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+ email = Column(String(100), unique=True)
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+
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+# 查询
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+dept_info = SessionLocal.query(User) \
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+ .filter(User.status == 0,
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+ User.del_flag == 0) \
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+ .first()
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+
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+```
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+
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