from sqlalchemy import *
from sqlalchemy.orm import declarative_base
from datetime import datetime
Base = declarative_base()
class Course_Model(Base):
    __tablename__ = 'wl_course'
    id = Column(Integer,autoincrement=True)
    course_id = Column(String(50),primary_key=True)
    course_name = Column(String(50))
    play_time=Column(Integer)
    create_date = Column(DATETIME, default=datetime.now)
    update_date = Column(DATETIME, default=datetime.now, onupdate=datetime.now)
    delete_status = Column(Integer,default=0,comment='删除状态：0未删除，1已删除')