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- app.py(主程序)

- templates/(存放HTML文件)
- static/(存放CSS和JS文件)
- models.py(定义数据模型)
from flask import Flask, render_template, request, redirect, url_for
app = Flask(__name__)
@app.route('/')
def index():
return "欢迎来到师生网上办事大厅!"
if __name__ == '__main__':
app.run(debug=True)

from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()
class User(db.Model):
id = db.Column(db.Integer, primary_key=True)
username = db.Column(db.String(80), unique=True, nullable=False)
password = db.Column(db.String(120), nullable=False)
@app.route('/login', methods=['GET', 'POST'])
def login():
if request.method == 'POST':
username = request.form['username']
password = request.form['password']
user = User.query.filter_by(username=username).first()
if user and user.password == password:
return "登录成功"
else:
return "用户名或密码错误"
return render_template('login.html')