上传文件至「/」

main123.py

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+from sqlalchemy import *
+from sqlalchemy.orm import declarative_base,sessionmaker
+from datetime import datetime
+
+db_url='mysql+pymysql://root:123456@127.0.0.1:3306/ai0824?charset=utf8mb4'
+
+engine=create_engine(db_url,pool_size=50,echo=True)
+
+Base=declarative_base()
+
+class Order(Base):
+    __tablename__ = 'order_info_detail'
+    id=Column(Integer,
+              primary_key=True,
+              autoincrement=True,
+              comment='订单编号，自增主键'
+              )
+    title=Column(String(50),
+                 nullable=False)
+    acc=Column(Integer)
+    userid=Column(Integer,ForeignKey('user_info_detail.id'),nullable=False)
+    create_date=Column(DATETIME,default=datetime.now)
+    update_date=Column(DATETIME,
+                       default=datetime.now,
+                       onupdate=datetime.now)
+
+class User(Base):
+    __tablename__ = 'user_info_detail'
+    id=Column(Integer,
+              primary_key=True,
+              autoincrement=True,
+              comment='用户编号,自增主键')
+    username=Column(String(50),
+                    nullable=False,
+                    comment='用户名'
+                    )
+    create_date=Column(DATETIME,
+                       default=datetime.now)
+    update_date=Column(DATETIME,
+                       default=datetime.now,
+                       onupdate=datetime.now)
+
+Base.metadata.create_all(engine)
+
+u1=User(username="ggbone")
+print(u1.username)
+u2=User(username='fbone')
+print(u2.username)
+
+Session=sessionmaker(bind=engine,
+                     autoflush=False,
+                     autocommit=False
+                     )
+db=Session()
+
+db.add(u1)
+db.add(u2)
+
+db.commit()
+db.close()
+
+db=Session()
+db.query(User)\
+   .filter(User.username=='ggbone')\
+   .update({'username':'超人强','create_date':'2000-1-1'})
+db.commit()
+
+
+
+
+