# exts.py:插件管理扩展的第三方插件并
#1.导入第三方插件
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate
from  flask_restful import  Api


# 2、初始化
db=SQLAlchemy()# ORM
migrate = Migrate()
api = Api()

#3.和app对象绑定
def init_exts(app):
        db.init_app(app = app)
        migrate.init_app(app=app,db=db)
        api.init_app(app=app)