javascript 复制代码 运行

const express = require('express'); const app = express(); app.use(express.json()); // for parsing application/json app.get('/api/products', (req, res) => { // 逻辑处理，从数据库获取产品列表并返回 }); app.post('/api/orders', (req, res) => { // 逻辑处理，创建新的订单 }); app.listen(3000, () => { console.log('Server is running on port 3000'); });

jsx 复制代码 运行

import React, { useState, useEffect } from 'react'; import axios from 'axios'; function ProductList() { const [products, setProducts] = useState([]); useEffect(() => { fetchProducts(); }, []); const fetchProducts = async () => { const response = await axios.get('/api/products'); setProducts(response.data); }; return ( <div> {products.map(product => ( <div key={product.id}> <h2>{product.name}</h2> <p>{product.description}</p> <button>Buy Now</button> </div> ))} </div> ); }

python 复制代码 运行

from flask import Flask, render_template, request, redirect, url_for from flask_sqlalchemy import SQLAlchemy app = Flask(__name__) app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///credit_installment.db' db = SQLAlchemy(app) 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) class LoanApplication(db.Model): id = db.Column(db.Integer, primary_key=True) user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False) amount = db.Column(db.Float, nullable=False) term = db.Column(db.Integer, nullable=False) status = db.Column(db.String(20), nullable=False) @app.route('/') def index(): return render_template('index.html') @app.route('/login', methods=['POST']) def login(): username = request.form['username'] password = request.form['password'] user = User.query.filter_by(username=username, password=password).first() if user: return redirect(url_for('loan_application')) else: return '用户名或密码错误' @app.route('/loan_application', methods=['GET', 'POST']) def loan_application(): if request.method == 'POST': user_id = request.form['user_id'] amount = float(request.form['amount']) term = int(request.form['term']) application = LoanApplication(user_id=user_id, amount=amount, term=term, status='待审批') db.session.add(application) db.session.commit() return '贷款申请已提交，等待审批' else: return render_template('loan_application.html') if __name__ == '__main__': app.run(debug=True)