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1. Flask ? ??? ??? ?, models.py? app import db, import db, ? ? ???? ?????. ??? ???? ? ????

?? models.py?? ?? db? ???? ??? from .import db? ??? ? ??? ?????. . from app import db? ??? ? ??? ?????. ?? db? ??? ? ????
__init__ ??? ??? ????:
from ???? import Flask,render_template
from ????_bootstrap import Bootstrap
from ????_mail import Mail
from ????_moment import Moment
from ????_sqlalchemy import SQLAlchemy
Flask_login?? LoginManager ????

mail=??()
moment=??()
db=SQLAlchemy()
login_manager=LoginManager

???