用JS实现商品数据库增删改查的代码

// 创建一个商品数据库 let products = []; // 添加商品 function addProduct(name, price) let product = { id: products.length 1, name: name, price: price }; products.push(product); } // 删除商品 function deleteProduct(id) { for (let i = 0; i < products.length; i ) { ifproducts[i].id === id) { .splice(i, 1); break; } } } // 修改商品 function updateProduct(id, name, price) { for (let i = 0; i < products.length; i ) { if (products[i].id === id) { products[i].name = name; products[i].price = price; break; } } } // 查询商品 function findProduct(id) { for (let i = 0; i < products.length; i ) { if (products[i].id === id) { return products[i]; } } return null; } // 测试代码 addProduct("Apple", 10); addProduct("ana", 5); console.log(products); deleteProduct(1); console.log(products); updateProduct(2, "Orange", 8); console.log(products); product = findProduct(2); console.log(product);