JavaScript 创建一个数组来存储包含品牌、数量、金额

// 创建一个数组来记录商品信息，每个元素包含品牌、数量、金额和备注
let products = [
  { 
    brand: "苹果", 
    quantity: 10, 
    amount: 5999, 
    remark: "iPhone 15 Pro" 
  },
  { 
    brand: "华为", 
    quantity: 8, 
    amount: 6999, 
    remark: "Mate 60 Pro" 
  },
  { 
    brand: "小米", 
    quantity: 15, 
    amount: 4999, 
    remark: "小米14 Ultra" 
  }
];

// 访问数组中的数据
console.log(products[0].brand); // 输出：苹果
console.log(products[1].amount); // 输出：6999

// 添加新数据
products.push({
  brand: "三星",
  quantity: 5,
  amount: 7999,
  remark: "Galaxy S24 Ultra"
});

// 遍历数组
products.forEach((product, index) => {
  console.log(`第${index + 1}项: ${product.brand}，数量: ${product.quantity}，金额: ${product.amount}，备注: ${product.remark}`);
});



// 创建一个包含单条产品信息的对象
const products = {
  brand: "苹果",
  quantity: 10,
  amount: 5999,
  remark: "iPhone 15 Pro"
};