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購物車代碼怎么實(shí)現(xiàn)?

實(shí)現(xiàn)購物車的代碼可以用各種編程語言編寫,以下是一個(gè)簡單的示例,這個(gè)簡單的購物車示例包括了HTML、CSS和JavaScript部分,使用了按鈕添加商品到購物車,展示了購物車中的商品列表以及總價(jià),并提供了結(jié)賬功能。

代碼

<!DOCTYPE html>
<html lang=“en”>
<head>
  <meta charset=“UTF-8”>
  <meta name=“viewport” content=“width=device-width, initial-scale=1.0”>
  <title>Shopping Cart</title>
  <link rel=“stylesheet” href=“styles.css”>
</head>
<body>
  <div class=“cart”>

<h2>Shopping Cart</h2>
<ul id="cart-items"></ul>
<p>Total: $<span id="total-price">0</span></p>
<button onclick="checkout()">Checkout</button>

</div>

<div class=“products”>

<h2>Products</h2>
<ul id="product-list">
  <li><button onclick="addItem('apple')">Add Apple</button></li>
  <li><button onclick="addItem('banana')">Add Banana</button></li>
  <li><button onclick="addItem('orange')">Add Orange</button></li>
</ul>

</div>

<script src=“script.js”></script> </body> </html>

.cart, .products {
  float: left;
  margin-right: 20px;
}

button { margin-top: 5px; }

.cart { width: 250px; }

.products { width: 200px; }

let cart = ; // 存儲(chǔ)購物車商品和數(shù)量的對(duì)象
let prices = ; // 商品價(jià)格

function addItem(item) { if (cart[item]) {

cart[item]++;

} else {

cart[item] = 1;

} updateCart(); }

function updateCart() { let cartItems = document.getElementById(‘cart-items’); cartItems.innerHTML = “; let totalPrice = 0;

for (let item in cart) {

let quantity = cart[item];
let price = prices[item];
let itemTotal = quantity * price;

let li = document.createElement('li');
li.textContent = `$: $ x $$ = $$`;
cartItems.appendChild(li);

totalPrice += itemTotal;

}

document.getElementById(‘total-price’).textContent = totalPrice.toFixed(2); }

function checkout() { alert(‘Total cost of your purchase is: $’ + document.getElementById(‘total-price’).textContent); }

過期時(shí)間:永久公開
創(chuàng)建于:2024-03-21 16:57
216
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