# 导入SQLAlchemy的create_engine函数
from sqlalchemy import create_engine
# 导入SQLAlchemy的sessionmaker函数
from sqlalchemy.orm import sessionmaker
# 导入SQLAlchemy的declarative_base函数
from sqlalchemy.ext.declarative import declarative_base

# 定义SQLAlchemy数据库URL
SQLALCHEMY_DATABASE_URL = "sqlite:///./test.db"

# 创建SQLAlchemy引擎实例
engine = create_engine(
    SQLALCHEMY_DATABASE_URL, connect_args={"check_same_thread": False}
)
# 创建会话本地实例
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)

# 创建SQLAlchemy的Base类实例
Base = declarative_base()