通过用户模型，对数据库进行增删改查操作。
时间：2021-07-01 10:21:17
帮助过：4人阅读
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=TabError,autoincrement=
True)
username = db.Column(db.String(20), nullable=
False)
password = db.Column(db.String(20), nullable=
False)
#增加
user = User(username =
‘shuai‘,password=
‘520520‘ )
db.session.add(user)
db.session.commit()
#查询
user=User.query.filter(User.username ==
‘shuai‘).first()
print(user.username,user.password)
#删除
user=User.query.filter(User.username ==
‘shuai‘).first()
db.session.delete(user)
db.session.commit()
#修改
user=User.query.filter(User.username ==
‘shuai‘).first()
user.password=
‘321654‘
db.session.commit()
@app.route(‘/‘)
def base():
return render_template(
‘base.html‘)
@app.route(‘/login/‘)
def login():
return render_template(
‘login.html‘)
@app.route(‘/regist/‘)
def regist():
return render_template(
‘register.html‘)
@app.route(‘/label/‘)
def label():
return render_template(
‘label.html‘)
if __name__ ==
‘__main__‘:
app.run(debug=True)
SQLALCHEMY_DATABASE_URI=‘mysql+pymysql://root:@127.0.0.1:3306/mis_db?charset=utf8‘
SQLALCHEMY_TRACK_MODIFICATIONS = False
通过用户模型，对数据库进行增删改查操作。
标签：from word key 用户 return utf8 als password ring
