本文实例为大家分享了C#实现商城购物功能的具体代码，供大家参考，具体内容如下
商品类
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namespace ShoppingSystem{ /* * 商品信息包括：商品名称、商品价格、商品型号、商品描述等 */ /// <summary> /// 商品类 /// </summary> class Goods { /// <summary> /// 商品名称 /// </summary> private string goodName; /// <summary> /// 商品价格 /// </summary> private float goodPrice; /// <summary> /// 商品型号 /// </summary> private string[] goodModel = new string[2]; /// <summary> /// 商品类别 /// </summary> private string goodType; /// <summary> /// 商品描述 /// </summary> private string goodDescribe; /// <summary> /// 卖家 /// </summary> private Seller seller; public Seller Seller { get { return seller; } set { seller = value; } } public string GoodName { get { return goodName; } set { goodName = value; } } public float GoodPrice { get { return goodPrice; } set { goodPrice = value; } } public string[] GoodModel { get { return goodModel; } set { goodModel = value; } } public string GoodType { get { return goodType; } set { goodType = value; } } public string GoodDescribe { get { return goodDescribe; } set { goodDescribe = value; } } /// <summary> /// 构造函数，对各个变量赋值并添加商品描述 /// </summary> /// <param name="goodName">商品名</param> /// <param name="goodPrice">商品价格</param> /// <param name="goodId">商品编号</param> /// <param name="goodModel">商品型号</param> /// <param name="goodType">商品类别</param> public Goods(string goodName, float goodPrice, string[] goodModel, string goodType) { this.goodName = goodName; this.goodPrice = goodPrice; this.goodModel = goodModel; this.goodType = goodType; goodDescribe = goodName + goodModel[0] + "|" + goodModel[1] + "|" + goodPrice + "|"; } }} |
商品总库
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namespace ShoppingSystem{ class GoodsSql { /// <summary> /// 商品总库 /// </summary> private Goods[] good = new Goods[20]; public Goods[] Good { get { return good; } set { good = value; } } }} |
用户类
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using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace ShoppingSystem{ /// <summary> /// 用户类 /// </summary> class User { /// <summary> /// 用户名 /// </summary> private string username; /// <summary> /// 用户余额 /// </summary> private float userBalance; /// <summary> /// 购物车 /// </summary> private ShoppingCart cart = new ShoppingCart(); public User(string username, float userBalance) { this.username = username; this.userBalance = userBalance; cart.User = this; } public string Username { get { return username; } set { username = value; } } public float UserBalance { get { return userBalance; } set { userBalance = value; } } public ShoppingCart Cart { get { return cart; } set { cart = value; } } /// <summary> /// 加入购物车 /// </summary> /// <param name="good">要加入的商品</param> /// <param name="goodsNum">要买的数量</param> public void BuyGoods(Goods good, int goodsNum) { cart.AddGoods(good, goodsNum); //TODO } /// <summary> /// 结算并清空购物车 /// </summary> public void CheckoutCart() { cart.CheckoutCart(); } }} |
卖家类
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using System;namespace ShoppingSystem{ /// <summary> /// 卖家类 /// </summary> class Seller { /// <summary> /// 卖家姓名 /// </summary> private string sellerName; /// <summary> /// 卖家余额 /// </summary> private float sellerBalance; /// <summary> /// 卖家商品数组 /// </summary> private Goods[] sellerGoods = new Goods[5]; public Seller(string sellerName, float sellerBalance) { this.sellerName = sellerName; this.sellerBalance = sellerBalance; } public string SellerName { get { return sellerName; } set { sellerName = value; } } public float SellerBalance { get { return sellerBalance; } set { sellerBalance = value; } } public Goods[] SellerGoods { get { return sellerGoods; } set { sellerGoods = value; } } /// <summary> /// 上架新商品 /// </summary> /// <param name="good"></param> public void AddGood(Goods good,GoodsSql goods) { for (int i = 0; i < sellerGoods.Length; i++) { if (sellerGoods[i] == null) { sellerGoods[i] = good; good.Seller = this; for (int j = 0; j < goods.Good.Length; j++) { if (goods.Good[j] == null) { goods.Good[j] = good; break; } } Console.WriteLine("添加商品成功！"); break; } if (i == sellerGoods.Length - 1) { Console.WriteLine("添加商品失败！已达到可上架商品的上限！"); return; } } } /// <summary> /// 更新商品信息 /// </summary> /// <param name="good">要更新的商品</param> /// <param name="goodName">商品名称</param> /// <param name="goodPrice">商品价格</param> /// <param name="goodId">商品编号</param> /// <param name="goodModel">商品型号</param> /// <param name="goodType">商品种类</param> public void UpdateGoodInfo(Goods good, string goodName, float goodPrice, string[] goodModel, string goodType) { if (good != null) { good.GoodName = goodName; good.GoodModel = goodModel; good.GoodType = goodType; good.GoodDescribe = goodName + goodModel[0] + "|" + goodModel[1] + "|" + goodPrice + "|"; Console.WriteLine("更新商品信息成功！"); return; } Console.WriteLine("更新商品信息失败！"); } }} |
服务类
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namespace ShoppingSystem{ class Service { private Goods[] goods = new Goods[20]; public Goods[] Goods { get { return goods; } set { goods = value; } } /// <summary> /// 按类型搜索商品 /// </summary> /// <param name="goodType"></param> /// <param name="goods"></param> public void Search(string goodType, GoodsSql goods) { this.goods = new Goods[20]; int count = 0; for (int i = 0; i < goods.Good.Length; i++) { if (goods.Good[i] != null && goods.Good[i].GoodType.Equals(goodType)) { this.goods[count++] = goods.Good[i]; } } } }} |
购物车类
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using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace ShoppingSystem{ /// <summary> /// 购物车类 /// </summary> class ShoppingCart { /// <summary> /// 购物条目数组 /// </summary> private ShoppingItems[] items; /// <summary> /// 购物费用总计 /// </summary> private float totalPrice = 0.00f; /// <summary> /// 购物车所属用户 /// </summary> private User user; public ShoppingItems[] Items { get { return items; } set { items = value; } } public float TotalPrice { get { return totalPrice; } set { totalPrice = value; } } public User User { get { return user; } set { user = value; } } /// <summary> /// 添加商品到购物车 /// </summary> /// <param name="good">要加入的商品</param> /// <param name="goodsNum">要买的数量</param> public void AddGoods(Goods good, int goodsNum) { //若购物车条目为空，实例化购物车条目数组 if (items == null) { items = new ShoppingItems[10]; } //加入商品条目到购物条目数组 for (int i = 0; i < items.Length; i++) { if (items[i] == null) { items[i] = new ShoppingItems(); items[i].Good = good; items[i].GoodsNum = goodsNum; totalPrice += good.GoodPrice * goodsNum; Console.WriteLine($"已将{good.GoodDescribe}数量：{goodsNum}，加入购物车"); break; } if (i == items.Length - 1) { Console.WriteLine("购物车已满！"); } } } /// <summary> /// 结算并清空购物车 /// </summary> public void CheckoutCart() { //判断购物车是否为空 if (items == null) { Console.WriteLine("您的购物车中没有商品！"); return; } foreach (var item in items) { if (item != null) { item.Good.Seller.SellerBalance += item.Good.GoodPrice * item.GoodsNum; Console.WriteLine($"商品名称：{item.Good.GoodName}"); } } Console.WriteLine($"{user.Username}已经清空了购物车，共计花费{totalPrice}元"); user.UserBalance -= totalPrice; items = null; //TODO } public void selectCart() { if (items == null) { Console.WriteLine("您的购物车是空的！"); return; } foreach (var item in items) { Console.WriteLine($"{item.Good.GoodDescribe}数量：{item.GoodsNum}"); } } }} |
购物车条目类
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using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace ShoppingSystem{ /// <summary> /// 购物车中的商品条目类 /// </summary> class ShoppingItems { /// <summary> /// 商品 /// </summary> private Goods good; /// <summary> /// 要买的数量 /// </summary> private int goodsNum; public Goods Good { get { return good; } set { good = value; } } public int GoodsNum { get { return goodsNum; } set { goodsNum = value; } } }} |
服务台
这里其实应该封装不少东西，我偷懒了，不搞了
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using System;namespace ShoppingSystem{ /// <summary> /// 软件使用类 /// </summary> class SoftwareUsage { /// <summary> /// 获取用户指令 /// </summary> /// <returns></returns> public string Order() { Console.WriteLine("请先输入指令："); Console.WriteLine("0-退出，1-搜索，2-购买，3-清空并结算购物车，4-查询购物车"); return Console.ReadLine(); } }} |
程序入口main函数：
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using System;namespace ShoppingSystem{ class Program { static void Main(string[] args) { GoodsSql goodsSql = new GoodsSql(); Service service = new Service(); User user = new User("岳翔", 10000000.00f); SoftwareUsage use = new SoftwareUsage(); Seller seller01 = new Seller("卖家1", 10000.00f); Seller seller02 = new Seller("卖家2", 10000.00f); Seller seller03 = new Seller("卖家3", 10000.00f); Goods good01 = new Goods("编程之美(图书)", 120.00f, new string[]{ "质量", "普通版" }, "图书"); Goods good02 = new Goods("编程之美(图书)", 145.00f, new string[]{ "质量", "精装版" }, "图书"); Goods good03 = new Goods("三毛流浪记(图书)", 20.00f, new string[]{ "质量", "普通版" }, "图书"); Goods good04 = new Goods("三毛流浪记(图书)", 25.00f, new string[]{ "质量", "精装版" }, "图书"); Goods good05 = new Goods("iPhone 100(手机)", 6000.00f, new string[]{ "RAM", "64GB" }, "手机"); Goods good06 = new Goods("iPhone 100(手机)", 7000.00f, new string[]{ "RAM", "128GB" }, "手机"); Goods good07 = new Goods("iPhone 100(手机)", 9000.00f, new string[]{ "RAM", "512GB" }, "手机"); Goods good08 = new Goods("Nokia(手机)", 1000.00f, new string[]{ "型号", "E63" }, "手机"); Goods good09 = new Goods("Nokia(手机)", 2000.00f, new string[]{ "型号", "N95" }, "手机"); Goods good10 = new Goods("Nokia(手机)", 2300.00f, new string[]{ "型号", "N97" }, "手机"); Goods good11 = new Goods("Mac Book Pro(电脑)", 18000.00f, new string[]{ "配置", "低配版" }, "电脑"); Goods good12 = new Goods("Mac Book Pro(电脑)", 20000.00f, new string[]{ "配置", "中配版" }, "电脑"); Goods good13 = new Goods("Mac Book Pro(电脑)", 22000.00f, new string[]{ "配置", "⾼配版" }, "电脑"); seller01.AddGood(good01, goodsSql); seller01.AddGood(good02, goodsSql); seller01.AddGood(good03, goodsSql); seller01.AddGood(good04, goodsSql); seller01.AddGood(good05, goodsSql); seller02.AddGood(good06, goodsSql); seller02.AddGood(good07, goodsSql); seller02.AddGood(good08, goodsSql); seller02.AddGood(good09, goodsSql); seller02.AddGood(good10, goodsSql); seller03.AddGood(good11, goodsSql); seller03.AddGood(good12, goodsSql); seller03.AddGood(good13, goodsSql); Console.Clear(); while (true) { string order = use.Order(); switch (order) { case "0": Console.WriteLine("购物结束！"); return; case "1": Console.WriteLine("请输入搜索关键词："); string goodType = Console.ReadLine(); service.Search(goodType, goodsSql); Goods[] goods = service.Goods; Console.WriteLine($"当前买家{user.Username}正在搜索商品：{goodType}"); Console.WriteLine("-----------------------"); foreach (var item in goods) { if (item != null) { Console.WriteLine($"商品名：{item.GoodName}，商品类型（{item.GoodModel[0]}）" + $"{item.GoodModel[1]},{item.GoodPrice}元"); } } Console.WriteLine("-----------------------"); break; case "2": if (service.Goods[0] == null) { Console.WriteLine("请先搜索选购！"); break; } Console.WriteLine("请先输入商品编号："); int goodId = Int32.Parse(Console.ReadLine()); Console.WriteLine("请先输入商品数量："); int goodsNum = Int32.Parse(Console.ReadLine()); user.BuyGoods(service.Goods[goodId - 1], goodsNum); Console.WriteLine("-----------------------"); break; case "3": user.CheckoutCart(); Console.WriteLine($"账户余额：{user.UserBalance}"); break; case "4": user.Cart.selectCart(); break; default: Console.WriteLine("您输入的指令不正确！"); break; } } } }} |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/maybe_ice/article/details/104446546
