时间:2021-07-01 10:21:17 帮助过:23人阅读
增删改查:
from flask import Flask 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=TabError,autoincrement=True) username = db.Column(db.String(20),nullable=False) password = db.Column(db.String(20), nullable=False) #db.create_all() #增加 user = User(username=‘123456‘,password = ‘456789‘) db.session.add(user) db.session.commit() #查询 user =User.query.filter(User.username ==‘abcdef‘).first() print(user.username,user.password) #修改 user =User.query.filter(User.username ==‘123456‘).first() user.password=‘abcdef‘ print(user.username,user.password) db.session.commit() #删除 user =User.query.filter(User.username ==‘123456‘).first() print(user.username,user.password) db.session.delete(user) db.session.commit() @app.route(‘/‘) def hello_world(): return ‘Hello World!‘ if __name__ == ‘__main__‘: app.run()
增加:
查询:
修改:
删除:
通过用户模型,对数据库进行增删改查操作。
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