#增
#删
#查
#改
通过用户模型，对数据库进行增删改查操作
标签：password .config creat mis ring 增加 obj ie8 color
通过用户模型，对数据库进行增删改查操作
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=True, autoincrement=True)
username = db.Column(db.String(20), nullable=False)
password = db.Column(db.String(20), nullable=False)
nickname = db.Column(db.String(20))
# db.create_all()
#增
user = User(username=‘xyjie‘, password=‘xyj19950326‘)
db.session.add(user)
db.session.commit()
# 删
user = User.query.filter(User.username == ‘xyjie2‘).first()
user.password = ‘xyj19950326‘
db.session.delete(user)
db.session.commit()
# 改
user = User.query.filter(User.username == ‘xyjie8‘).first()
user.username = ‘xyjie10‘
db.session.add(user)
db.session.commit()
# 查
user = User.query.filter(User.username == ‘xyjie8‘).first()
print(user.id, user.username, user.password)
@app.route(‘/‘)
def hello_world():
return ‘Hello World!‘
if __name__ == ‘__main__‘:
app.run()