{% extends 'base.html' %} {% from 'macros.html' import form_field %}

app=Flask(name) db=SQLAlchemy(app) migrate=Migrate(app,db)

class Writer(db.Model): books=db.relationship('Book',back_populates='writer') class Book(db.Model): writer_id=db.Column(db.Integer,db.ForeignKey('writer.id')...

import sendgrid from sendgrid.helpers.mail import Email as SGEmail, Content, Mail as SGMail from flask_mail import Mail, Message from flask_wtf import FlaskF...

级联： class Witer(db.Model): books=db.relationship('writer',cascade='save-update,merge,delete')

from flask import Flask import os from flask_mail import Mail, Message

jquery.ajax()函数参数： url: type:GET data datatype complete:请求完成时回调函数 success:请求成功 error:请求失败

from flask import Flask,make_response,json

import click from flask_sqlalchemy import SQLAlchemy

WTForms: BooleanField : checkbox DateField: DateTimeField: FileField 文件上传 FloatField IntegerField RadioField :radio SelectField SelectMultipleField ...