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:26人阅读
config
from flask
import Flask,render_template
from flask_sqlalchemy
import SQLAlchemy
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(50
))
#db.create_all()
#增加数据
user=User(username =
‘kyle123‘,password =
‘123456‘)
db.session.add(user)
db.session.commit()
#查询数据
user=User.query.filter(user.username ==
‘kyle123‘).first()
print(user.id,user.username,user.password)
#修改数据
user=User.query.filter(user.username ==
‘kyle2017‘).first()
user.password =
‘111111‘
db.session.commit()
#删除数据
user=User.query.filter(user.username ==
‘kyle2017‘).first()
db.session.delete(user)
db.session.commit()
@app.route(‘/login‘)
def login():
return render_template(
‘login.html‘)
@app.route(‘/register‘)
def register():
return render_template(
‘register.html‘)
@app.route(‘/question‘)
def question():
return render_template(
‘question.html‘)
@app.route(‘/base‘)
def base():
return render_template(
‘base.html‘)
@app.route(‘/‘)
def index():
return render_template(
‘index.html‘)
if __name__ ==
‘__main__‘:
app.run(debug=True)
通过用户模型,对数据库进行增删改查操作。
标签:let bsp render username import pre temp 数据库 prim