from datetime import datetimefrom exts import dbclass User(db.Model):__tablename__ = 'user1' #定义表名id = db.Column(db.Integer,primary_key=True,autoincrement=True)username = db.Column(db.String(10), nullable=True)password = db.Column(db.String(256), nullable=True)phone = db.Column(db.String(11),nullable=True,unique=True)rdatetime = db.Column(db.DateTime,default  =datetime.now)isdelete = db.Column(db.Boolean,default=False)def __str__(self):return self.username