超市管理系统c++

超市管理系统是一个比较复杂的系统，需要综合考虑库存管理、销售管理、员工管理、财务管理等多个方面。下面是一个简单的C++超市管理系统的示例代码，供参考：

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

using namespace std;

// 商品类
class Commodity {
public:
    string name;  // 商品名称
    double price;  // 商品单价
    int stock;  // 商品库存

    Commodity(string name, double price, int stock) {
        this->name = name;
        this->price = price;
        this->stock = stock;
    }
};

// 超市类
class SuperMarket {
public:
    vector<Commodity> commodities;  // 商品列表

    // 添加商品
    void addCommodity(Commodity commodity) {
        commodities.push_back(commodity);
    }

    // 删除商品
    void deleteCommodity(int index) {
        commodities.erase(commodities.begin() + index);
    }

    // 修改商品信息
    void modifyCommodity(int index, Commodity commodity) {
        commodities[index] = commodity;
    }

    // 查询商品信息
    void queryCommodity(int index) {
        Commodity commodity = commodities[index];
        cout << "商品名称：" << commodity.name << endl;
        cout << "商品单价：" << commodity.price << endl;
        cout << "商品库存：" << commodity.stock << endl;
    }

    // 销售商品
    void sellCommodity(int index, int num) {
        Commodity &commodity = commodities[index];
        if (commodity.stock < num) {
            cout << "库存不足！" << endl;
        } else {
            commodity.stock -= num;
            cout << "销售成功！" << endl;
        }
    }

    // 统计销售额
    double getSales() {
        double sales = 0;
        for (auto commodity : commodities) {
            sales += commodity.price * (commodity.stock - 10);  // 假设每个商品的最低库存量为10
        }
        return sales;
    }
};

int main() {
    SuperMarket market;

    // 初始化商品列表
    market.addCommodity(Commodity("苹果", 5.0, 50));
    market.addCommodity(Commodity("香蕉", 3.0, 30));
    market.addCommodity(Commodity("橙子", 4.0, 40));

    while (true) {
        cout << "请选择操作：" << endl;
        cout << "1.添加商品" << endl;
        cout << "2.删除商品" << endl;
        cout << "3.修改商品信息" << endl;
        cout << "4.查询商品信息" << endl;
        cout << "5.销售商品" << endl;
        cout << "6.统计销售额" << endl;
        cout << "7.退出" << endl;
        int choice;
        cin >> choice;
        switch (choice) {
            case 1: {
                cout << "请输入商品名称：" << endl;
                string name;
                cin >> name;
                cout << "请输入商品单价：" << endl;
                double price;
                cin >> price;
                cout << "请输入商品库存：" << endl;
                int stock;
                cin >> stock;
                Commodity commodity(name, price, stock);
                market.addCommodity(commodity);
                cout << "添加成功！" << endl;
                break;
            }
            case 2: {
                cout << "请输入要删除的商品编号：" << endl;
                int index;
                cin >> index;
                market.deleteCommodity(index);
                cout << "删除成功！" << endl;
                break;
            }
            case 3: {
                cout << "请输入要修改的商品编号：" << endl;
                int index;
                cin >> index;
                cout << "请输入新的商品名称：" << endl;
                string name;
                cin >> name;
                cout << "请输入新的商品单价：" << endl;
                double price;
                cin >> price;
                cout << "请输入新的商品库存：" << endl;
                int stock;
                cin >> stock;
                Commodity commodity(name, price, stock);
                market.modifyCommodity(index, commodity);
                cout << "修改成功！" << endl;
                break;
            }
            case 4: {
                cout << "请输入要查询的商品编号：" << endl;
                int index;
                cin >> index;
                market.queryCommodity(index);
                break;
            }
            case 5: {
                cout << "请输入要销售的商品编号：" << endl;
                int index;
                cin >> index;
                cout << "请输入销售数量：" << endl;
                int num;
                cin >> num;
                market.sellCommodity(index, num);
                break;
            }
            case 6: {
                double sales = market.getSales();
                cout << "销售额为：" << sales << endl;
                break;
            }
            case 7: {
                return 0;
            }
            default: {
                cout << "无效的选择！" << endl;
                break;
            }
        }
    }

    return 0;
}

以上代码只是一个简单的示例，实际开发中还需要考虑更多的功能和异常情况的处理。