由于生成一个完整的购物商城代码在多个电脑语言中是非常复杂且庞大的任务，我无法直接在这里为你提供所有语言的完整实现。不过，我可以为你提供一个简化的购物商城核心功能的伪代码或代码片段，以便你了解在不同语言
以下是使用几种常见编程语言（如Python、JavaScript、Java和C#）的简化示例：
- Python
python
class Product:
def init(self, name, price): aizhuw.cn
self.name = name
self.price = price
class ShoppingCart:
def init(self):
self.items = []
def add_item(self, product, quantity):
self.items.append((product, quantity))
def calculate_total(self):
total = 0
for product, quantity in self.items:
total += product.price * quantity
return total
使用示例
cart = ShoppingCart()
apple = Product(“Apple”, 0.99)
cart.add_item(apple, 5)
print(cart.calculate_total()) # 输出 4.95
2. JavaScript (Node.js 环境)
javascript
class Product {
constructor(name, price) {
this.name = name;
this.price = price;
}
}
class ShoppingCart {
constructor() {
this.items = [];
}
addItem(product, quantity) {
this.items.push({ product, quantity });
}
calculateTotal() {
let total = 0;
for (let { product, quantity } of this.items) {
total += product.price * quantity;
}
return total;
}
}
// 使用示例
let cart = new ShoppingCart();
let apple = new Product(“Apple”, 0.99);
cart.addItem(apple, 5);
console.log(cart.calculateTotal()); // 输出 4.95
3. Java
java
public class Product {
private String name;
private double price;
// 构造器、getter和setter方法...
}
import java.util.ArrayList;
import java.util.List;
public class ShoppingCart {
private List items = new ArrayList<>();
public void addItem(Product product, int quantity) {
items.add(new ProductQuantity(product, quantity));
}
public double calculateTotal() {
double total = 0;
for (ProductQuantity pq : items) {
total += pq.getProduct().getPrice() * pq.getQuantity();
}
return total;
}
// 内部类 ProductQuantity 用于存储产品和数量...
}
// 使用示例（省略了Product和ProductQuantity的完整实现）
4. C#
csharp
public class Product
{
public string Name { get; set; }
public double Price { get; set; }
}
public class ShoppingCart
{
private List items = new List();
public void AddItem(Product product, int quantity)
{
items.Add(new ProductQuantity { Product = product, Quantity = quantity });
}
public double CalculateTotal()
{
double total = 0;
foreach (var pq in items)
{
total += pq.Product.Price * pq.Quantity;
}
return total;
}
// ProductQuantity 是一个简单的类，包含 Product 和 Quantity 属性...
}
// 使用示例（省略了ProductQuantity的完整实现）
这些示例仅展示了购物商城的核心功能之一：添加商品到购物车并计算总价。一个完整的购物商城还需要考虑用户认证、数据库交互、前端界面、支付集成等多个方面。由于生成一个完整的购物商城代码在多个电脑语言中是非常复杂且庞大的任务，我无法直接在这里为你提供所有语言的完整实现。不过，我可以为你提供一个简化的购物商城核心功能的伪代码或代码片段，以便你了解在不同语言中如何开始。
以下是使用几种常见编程语言（如Python、JavaScript、Java和C#）的简化示例：
- Python
python
class Product:
def init(self, name, price):
self.name = name
self.price = price
class ShoppingCart:
def init(self):
self.items = []
def add_item(self, product, quantity):
self.items.append((product, quantity))
def calculate_total(self):
total = 0
for product, quantity in self.items:
total += product.price * quantity
return total
使用示例
cart = ShoppingCart()
apple = Product(“Apple”, 0.99)
cart.add_item(apple, 5)
print(cart.calculate_total()) # 输出 4.95
2. JavaScript (Node.js 环境)
javascript
class Product {
constructor(name, price) {
this.name = name;
this.price = price;
}
}
class ShoppingCart {
constructor() {
this.items = [];
}
addItem(product, quantity) {
this.items.push({ product, quantity });
}
calculateTotal() {
let total = 0;
for (let { product, quantity } of this.items) {
total += product.price * quantity;
}
return total;
}
}
// 使用示例
let cart = new ShoppingCart();
let apple = new Product(“Apple”, 0.99);
cart.addItem(apple, 5);
console.log(cart.calculateTotal()); // 输出 4.95
3. Java
java
public class Product {
private String name;
private double price;
// 构造器、getter和setter方法...
}
import java.util.ArrayList;
import java.util.List;
public class ShoppingCart {
private List items = new ArrayList<>();
public void addItem(Product product, int quantity) {
items.add(new ProductQuantity(product, quantity));
}
public double calculateTotal() {
double total = 0;
for (ProductQuantity pq : items) {
total += pq.getProduct().getPrice() * pq.getQuantity();
}
return total;
}
// 内部类 ProductQuantity 用于存储产品和数量...
}
// 使用示例（省略了Product和ProductQuantity的完整实现）
4. C#
csharp
public class Product
{
public string Name { get; set; }
public double Price { get; set; }
}
public class ShoppingCart
{
private List items = new List();
public void AddItem(Product product, int quantity)
{
items.Add(new ProductQuantity { Product = product, Quantity = quantity });
}
public double CalculateTotal()
{
double total = 0;
foreach (var pq in items)
{
total += pq.Product.Price * pq.Quantity;
}
return total;
}
// ProductQuantity 是一个简单的类，包含 Product 和 Quantity 属性...
}
// 使用示例（省略了ProductQuantity的完整实现）
这些示例仅展示了购物商城的核心功能之一：添加商品到购物车并计算总价。一个完整的购物商城还需要考虑用户认证、数据库交互、前端界面、支付集成等多个方面。