from flask import Flask, render_template
from flask_sqlalchemy import SQLAlchemy
import config
app = Flask(__name__)
app.config.from_object(config)
db = SQLAlchemy(app)
class User(db.Model):
__tablename__ = ‘user‘
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
username = db.Column(db.String(20), nullable=False)
password = db.Column(db.String(20), nullable=False)
db.create_all()
增加：
db.session.add(user)
db.session.commit()
user = User(username = ‘zhuyinyin‘,password=‘113428164508‘)
db.session.add(user)
db.session.commit()
查询：
User.query.filter(User.username == ‘mis1114‘).first()
User.query.filter(User.username == ‘zhuyinyin‘).first() print(user.username,user.password)
修改：
user.password = ‘111111‘
db.session.commit()
user=User.query.filter(User.username ==‘zhuyinyin‘).first() user.password=‘123‘ print(user.username,user.password) db.session.commit()
删除：
db.session.delete(user)
db.session.commit()
user=User.query.filter(User.username ==‘zhuyinyin‘).first() db.session.delete(user) db.session.commit()
原文：http://www.cnblogs.com/BerylF/p/7846435.html