用c++编写一个小型公司的工资管理程序

好的，以下是一个简单的小型公司的工资管理程序的C++代码：

#include <iostream>
using namespace std;

// 定义员工类
class Employee {
public:
    Employee(string name, int id, int level) {
        this->name = name;
        this->id = id;
        this->level = level;
    }

    virtual double calcSalary() = 0; // 计算当月薪水
    virtual void displayInfo() = 0; // 显示员工信息

protected:
    string name; // 员工姓名
    int id; // 员工编号
    int level; // 员工级别
};

// 定义经理类
class Manager : public Employee {
public:
    Manager(string name, int id, int level, double baseSalary)
        : Employee(name, id, level) {
        this->baseSalary = baseSalary;
        this->monthSalary = calcSalary();
    }

    double calcSalary() {
        return baseSalary;
    }

    void displayInfo() {
        cout << "姓名：" << name << endl;
        cout << "编号：" << id << endl;
        cout << "级别：" << level << endl;
        cout << "固定工资：" << baseSalary << endl;
        cout << "当月薪水：" << monthSalary << endl;
    }

private:
    double baseSalary; // 固定工资
    double monthSalary; // 当月薪水
};

// 定义兼职技术人员类
class PartTimeTech : public Employee {
public:
    PartTimeTech(string name, int id, int level, double hourlySalary, double workHours)
        : Employee(name, id, level) {
        this->hourlySalary = hourlySalary;
        this->workHours = workHours;
        this->monthSalary = calcSalary();
    }

    double calcSalary() {
        return hourlySalary * workHours;
    }

    void displayInfo() {
        cout << "姓名：" << name << endl;
        cout << "编号：" << id << endl;
        cout << "级别：" << level << endl;
        cout << "时薪：" << hourlySalary << endl;
        cout << "工作小时数：" << workHours << endl;
        cout << "当月薪水：" << monthSalary << endl;
    }

private:
    double hourlySalary; // 时薪
    double workHours; // 工作小时数
    double monthSalary; // 当月薪水
};

// 定义销售经理类
class SalesManager : public Employee {
public:
    SalesManager(string name, int id, int level, double baseSalary, double commissionRate, double salesAmount)
        : Employee(name, id, level) {
        this->baseSalary = baseSalary;
        this->commissionRate = commissionRate;
        this->salesAmount = salesAmount;
        this->monthSalary = calcSalary();
    }

    double calcSalary() {
        return baseSalary + commissionRate * salesAmount;
    }

    void displayInfo() {
        cout << "姓名：" << name << endl;
        cout << "编号：" << id << endl;
        cout << "级别：" << level << endl;
        cout << "底薪：" << baseSalary << endl;
        cout << "提成比例：" << commissionRate << endl;
        cout << "销售额：" << salesAmount << endl;
        cout << "当月薪水：" << monthSalary << endl;
    }

private:
    double baseSalary; // 底薪
    double commissionRate; // 提成比例
    double salesAmount; // 销售额
    double monthSalary; // 当月薪水
};

// 定义兼职销售员类
class PartTimeSales : public Employee {
public:
    PartTimeSales(string name, int id, int level, double baseSalary, double commissionRate, double salesAmount)
        : Employee(name, id, level) {
        this->baseSalary = baseSalary;
        this->commissionRate = commissionRate;
        this->salesAmount = salesAmount;
        this->monthSalary = calcSalary();
    }

    double calcSalary() {
        return baseSalary + commissionRate * salesAmount;
    }

    void displayInfo() {
        cout << "姓名：" << name << endl;
        cout << "编号：" << id << endl;
        cout << "级别：" << level << endl;
        cout << "底薪：" << baseSalary << endl;
        cout << "提成比例：" << commissionRate << endl;
        cout << "销售额：" << salesAmount << endl;
        cout << "当月薪水：" << monthSalary << endl;
    }

private:
    double baseSalary; // 底薪
    double commissionRate; // 提成比例
    double salesAmount; // 销售额
    double monthSalary; // 当月薪水
};

int main() {
    // 创建员工对象并计算当月薪水
    Employee* emp1 = new Manager("张三", 1001, 1, 10000);
    Employee* emp2 = new PartTimeTech("李四", 1002, 2, 50, 120);
    Employee* emp3 = new SalesManager("王五", 1003, 3, 5000, 0.05, 200000);
    Employee* emp4 = new PartTimeSales("赵六", 1004, 4, 2000, 0.02, 50000);

    // 显示员工信息
    emp1->displayInfo();
    emp2->displayInfo();
    emp3->displayInfo();
    emp4->displayInfo();

    return 0;
}

在这个程序中，我们定义了一个`Employee`类作为基类，其他员工类（`Manager`、`PartTimeTech`、`SalesManager`、`PartTimeSales`）都继承自它。每个员工类实现了自己的`calcSalary`和`displayInfo`方法，用于计算当月薪水和显示员工信息。在`main`函数中，我们创建了不同类型的员工对象，并分别调用它们的`displayInfo`方法来显示员工信息和当月薪水。