Question

在我目前的程序结构中，当产品销售时，它会遍历产品列表，我没有使用我的库存类。

我的意图是当产品被销售时，它将遍历我当前的库存找到该项目并执行相应的功能 - 即更新库存数量，但我不太确定如何使用我的库存类别产品管理类。希望这有点意义，谢谢:)

 class Product
{
    public int _id;
    public int _price;
    public int _quantity;

    public Product(int id, int price, int quantity)
    {
        _id = id;
        _price = price;
        _quantity = quantity;
    }
}

class Inventory
{
    private List<Product> _products = new List<Product>();

    public Inventory(List<Product> products)
    {
        _products = products;
    }
}

class ProductManagement : IProduct
{

    public List<Product> inventory = new List<Product>();

    public void addProduct(Product product)
    {
        inventory.Add(product);
    }

    public void productSold(Product product)
    {
        inventory.Remove(product);
        foreach(Product p in inventory)
        {
            if(p._id == product._id)
            {
                p._quantity = p._quantity - 1;
            }
        }   
    }

}

Answer 1

看看这是否是你要找的：

class ProductManagement : IProduct
{
    public Inventory inventory = new Inventory();
    public void addProduct(Product product)
    {
        inventory.AddProduct(product);
    }

    public void productSold(Product product)
    {
        //TODO: consider accepting quantitySold as a parameter, as you could sell more than 1 quantity of the same product
        var quantitySold = 1;
        inventory.UpdateProduct(product._id, quantitySold);
    }

}

class Inventory
{
    private List<Product> _products = new List<Product>();

    public Inventory()
    {

    }

    public void AddProduct(Product product)
    {
        //TODO: add checks if product already exists
        _products.Add(product);
    }

    public void UpdateProduct(int id, int quantity)
    {
        //TODO: check if id is valid
        var product = _products.Single(x => x._id == id);
        product._quantity -= quantity;
    }
}

我建议您浏览C＃编码约定：https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/inside-a-program/coding-conventions

股票管理系统的结构

1 个答案: