写一个c++酒水订单库存统计并维护管理系统

好的，下面是一个更完整的酒水订单库存统计维护管理系统的 C++ 代码：

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>

using namespace std;

// 定义酒类商品结构体
struct Goods {
    string name;    // 酒名
    string brand;   // 品牌
    int volume;     // 容量（单位：ml）
    int price;      // 单价（单位：分）
    int count;      // 库存数量
};

// 定义订单结构体
struct Order {
    string name;    // 酒名
    int volume;     // 容量（单位：ml）
    int count;      // 订单数量
};

// 定义酒水管理系统类
class LiquorManager {
private:
    vector<Goods> goodsList;    // 商品列表
    vector<Order> orderList;    // 订单列表
public:
    // 添加商品
    void addGoods(string name, string brand, int volume, int price, int count) {
        Goods goods = {name, brand, volume, price, count};
        goodsList.push_back(goods);
    }

    // 显示商品列表
    void showGoodsList() {
        cout << "商品列表：" << endl;
        for (int i = 0; i < goodsList.size(); i++) {
            Goods goods = goodsList[i];
            cout << "酒名：" << goods.name << "  品牌：" << goods.brand << "  容量：" << goods.volume << "ml  单价：" << goods.price << "分  库存数量：" << goods.count << endl;
        }
    }

    // 添加订单
    void addOrder(Order order) {
        for (int i = 0; i < goodsList.size(); i++) {
            Goods goods = goodsList[i];
            if (goods.name == order.name && goods.volume == order.volume) {
                if (goods.count >= order.count) {
                    goodsList[i].count -= order.count;
                    orderList.push_back(order);
                    cout << "订单添加成功！" << endl;
                    return;
                } else {
                    cout << "库存不足！" << endl;
                    return;
                }
            }
        }
        cout << "无法找到对应的商品！" << endl;
    }

    // 统计销售额
    int calculateSales() {
        int totalSales = 0;
        for (int i = 0; i < orderList.size(); i++) {
            Order order = orderList[i];
            for (int j = 0; j < goodsList.size(); j++) {
                Goods goods = goodsList[j];
                if (goods.name == order.name && goods.volume == order.volume) {
                    totalSales += order.count * goods.price;
                    break;
                }
            }
        }
        return totalSales;
    }

    // 统计销售量
    int calculateSalesVolume() {
        int totalSalesVolume = 0;
        for (int i = 0; i < orderList.size(); i++) {
            Order order = orderList[i];
            totalSalesVolume += order.count;
        }
        return totalSalesVolume;
    }

    // 统计库存量
    int calculateInventory() {
        int totalInventory = 0;
        for (int i = 0; i < goodsList.size(); i++) {
            Goods goods = goodsList[i];
            totalInventory += goods.count;
        }
        return totalInventory;
    }

    // 按销售额排序并显示商品列表
    void showGoodsListOrderBySales() {
        sort(goodsList.begin(), goodsList.end(), [](Goods a, Goods b) {
            int totalSalesA = 0, totalSalesB = 0;
            for (int i = 0; i < orderList.size(); i++) {
                Order order = orderList[i];
                if (order.name == a.name && order.volume == a.volume) {
                    totalSalesA += order.count * a.price;
                }
                if (order.name == b.name && order.volume == b.volume) {
                    totalSalesB += order.count * b.price;
                }
            }
            return totalSalesA > totalSalesB;
        });

        cout << "按销售额排序的商品列表：" << endl;
        for (int i = 0; i < goodsList.size(); i++) {
            Goods goods = goodsList[i];
            cout << "酒名：" << goods.name << "  品牌：" << goods.brand << "  容量：" << goods.volume << "ml  单价：" << goods.price << "分  库存数量：" << goods.count << endl;
        }
    }
};

int main() {
    LiquorManager manager;

    // 添加商品
    manager.addGoods("茅台", "贵州茅台", 500, 1999, 100);
    manager.addGoods("五粮液", "五粮液集团", 500, 1399, 200);
    manager.addGoods("洋河蓝色经典", "江苏洋河酒厂", 500, 699, 300);

    // 显示商品列表
    manager.showGoodsList();

    // 添加订单
    Order order1 = {"茅台", 500, 5};
    manager.addOrder(order1);

    Order order2 = {"五粮液", 500, 15};
    manager.addOrder(order2);

    Order order3 = {"洋河蓝色经典", 500, 35};
    manager.addOrder(order3);

    Order order4 = {"茅台", 500, 10};
    manager.addOrder(order4);

    // 统计销售额、销售量和库存量
    int totalSales = manager.calculateSales();
    int totalSalesVolume = manager.calculateSalesVolume();
    int totalInventory = manager.calculateInventory();
    cout << "销售额：" << totalSales << "分，销售量：" << totalSalesVolume << "，库存量：" << totalInventory << endl;

    // 按销售额排序并显示商品列表
    manager.showGoodsListOrderBySales();

    return 0;
}

该程序在原有的基础上新增了统计销售额、销售量和库存量的功能，并且可以按销售额排序并显示商品列表。可以根据需要进行扩展和修改。