代碼：

#Author Kang

import sqlalchemy
from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy import Column,Integer,String
from sqlalchemy.orm import sessionmaker

#創建對象的基類：
Base = declarative_base()

#定義User對象：
class User(Base):
    #表的名字：
    __tablename__ = ‘user‘

    #表的結構:
    userid = Column(Integer,primary_key=True)
    username = Column(String(20))
    age = Column(Integer)
    department = Column(String(20))

#初始化數據庫連接
engine = create_engine("mysql+pymysql://kang:[email protected]/test",encoding="utf-8")

#創建session類型
DBSession = sessionmaker(bind=engine)

#創建session對象
session = DBSession()

#先查詢，後刪除
session.query(User).filter(User.username == "Jack").delete()
session.commit()
session.close()
 

Python 之 sqlalchemy刪除數據