由于生成一个完整的购物商城代码会相当长且复杂，我会为你提供一个非常简化的购物商城示例代码片段，使用几种常见的编程语言：-优快云博客

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Python (Flask)siguansheji.com
python
from flask import Flask, request, jsonify

app = Flask(name)

products = [
{“id”: 1, “name”: “Product 1”, “price”: 100},
{“id”: 2, “name”: “Product 2”, “price”: 200},
# … more products
]

@app.route(‘/products’, methods=[‘GET’])
def get_products():
return jsonify(products)

@app.route(‘/products/int:product_id’, methods=[‘GET’])
def get_product(product_id):
for product in products:
if product[‘id’] == product_id:
return jsonify(product)
return jsonify({‘error’: ‘Product not found’}), 404

… more routes for adding, updating, deleting products, checkout, etc.

if name == ‘main’:
app.run(debug=True)
JavaScript (Node.js with Express)
javascript
const express = require(‘express’);
const app = express();
app.use(express.json());

let products = [
{id: 1, name: ‘Product 1’, price: 100},
{id: 2, name: ‘Product 2’, price: 200},
// … more products
];

app.get(‘/products’, (req, res) => {
res.json(products);
});

app.get(‘/products/:productId’, (req, res) => {
const productId = parseInt(req.params.productId);
const product = products.find(p => p.id === productId);
if (product) {
res.json(product);
} else {
res.status(404).json({error: ‘Product not found’});
}
});

// … more routes for adding, updating, deleting products, checkout, etc.

app.listen(3000, () => console.log(‘Server started on port 3000’));
Java (Spring Boot)
(注意：这里只给出控制器部分的代码)
java
import org.springframework.web.bind.annotation.*;
import java.util.Arrays;
import java.util.List;

@RestController
@RequestMapping(“/products”)
public class ProductController {

private List<Product> products = Arrays.asList(  
    new Product(1, "Product 1", 100),  
    new Product(2, "Product 2", 200)  
    // ... more products  
);  

@GetMapping  
public List<Product> getProducts() {  
    return products;  
}  

@GetMapping("/{productId}")  
public Product getProduct(@PathVariable int productId) {  
    for (Product product : products) {  
        if (product.getId() == productId) {  
            return product;  
        }  
    }  
    throw new RuntimeException("Product not found");  
}  

// ... other methods for adding, updating, deleting, etc.  

// Dummy Product class  
static class Product {  
    private int id;  
    private String name;  
    private int price;  
    // Constructors, getters, setters, etc.  
}

}
以上代码只是购物商城的一个非常小的部分，真正的商城会涉及更多的功能，如用户认证、购物车管理、订单处理、支付集成、库存管理、搜索、推荐等。每个部分都可能涉及复杂的逻辑和数据库交互。由于生成一个完整的购物商城代码会相当长且复杂，我会为你提供一个非常简化的购物商城示例代码片段，使用几种常见的编程语言：

Python (Flask)
python
from flask import Flask, request, jsonify