using System;

using System.Collections.Generic;

using System.Text;

namespace ConsoleApplication1

{

//员工类

public class Employee

{

private string userinfo;

private string username;

protected static double salary;//薪水

//构造函数

public Employee(string username,string userinfo)

{

this.username = username;

this.userinfo = userinfo;

salary = 1000;

}

private Employee()

{ }

//获取用户名

public string GetUserName()

{

return username;

}

//打印用户名

public void PrintUserName()

{

Console.WriteLine(姓名: + username);

}

//打印用户基本信息

public void PrintUserInfo()

{

Console.WriteLine(基本信息: + userinfo);

}

//打印用户详细信息

public void PrintEmployeeInfo()

{

PrintUserName();

PrintUserInfo();

}

//虚方法，多态的关键，使不同的员工工资不一样

//我没有打印员工的类别，如果需要打印， 方法和这个类似

public virtual double GetSalary()

{

return salary;

}

//打印薪水

public void PrintSalary()

{

Console.WriteLine(薪水: + GetSalary());

}

//输入薪水

static public void InputSalary(double newsalary)

{

salary = newsalary;

}

//以下是操作符重载

//重载=号

public static bool operator==(Employee e1, Employee e2)

{

if (string.Compare(e1.GetUserName(), e2.GetUserName()) == 0)

return true;

else

return false;

}

//重载！=号

public static bool operator !=(Employee e1, Employee e2)

{

if (string.Compare(e1.GetUserName(), e2.GetUserName()) != 0)

return true;

else

return false;

}

//重载>号

public static bool operator >(Employee e1, Employee e2)

{

if (string.Compare(e1.GetUserName(), e2.GetUserName()) == 1)

return true;

else

return false;

}

//重载public static bool operator <(Employee e1, Employee e2) { if (string.Compare(e1.GetUserName(), e2.GetUserName()) == -1) return true; else return false; } } //正式工 public class Regularstaff:Employee { public Regularstaff(string username,string userinfo) : base(username,userinfo) { } //重写父类的方法 public override double GetSalary() { return salary; } } //行政人员 public class Administrationstaff : Employee { public Administrationstaff(string username, string userinfo) : base(username, userinfo) { } //重写父类的方法 public override double GetSalary() { return salary*1.5; } } //销售人员 public class Salesman : Employee { public Salesman(string username,string userinfo) : base(username,userinfo) { } //重写父类的方法 public override double GetSalary() { return salary*1.8; } } class Program { static void Main(string[] args) { ConsoleKeyInfo cki= new ConsoleKeyInfo(); List emp = new List(); string userinfo = string.Empty; string username = string.Empty; while (true) { //显示选择菜单 Console.WriteLine(1.员工录入); Console.WriteLine(2.员工查询); Console.WriteLine(3.薪水录入); Console.WriteLine(4.工资查询); Console.WriteLine(5.工资平均值); Console.WriteLine(6.退出系统); Console.WriteLine(请输入您的选择:); cki = Console.ReadKey(); Console.WriteLine(); switch (cki.KeyChar) { case '1': int employeetype=0; Console.WriteLine(请输入员工的姓名:); username = Console.ReadLine(); Console.WriteLine(请输入员工的基本信息:); userinfo = Console.ReadLine(); Console.WriteLine(请输入员工的类别:1、正式工 2、行政人员 3、销售人员); employeetype = int.Parse(Console.ReadLine()); Employee newemp; //根据不同的选项实例化不同的对象 switch (employeetype) { case 1: newemp = new Regularstaff(username, userinfo); break; case 2: newemp = new Administrationstaff(username, userinfo); break; case 3: newemp = new Salesman(username, userinfo); break; default: //默认为正式工 newemp = new Regularstaff(username, userinfo); break; } emp.Add(newemp); break; case '2': for (int i = 0; i < emp.Count; i++) { emp[i].PrintEmployeeInfo(); } break; case '3': double newsalary = 0; Console.WriteLine(请输入基本薪水:); newsalary = double.Parse(Console.ReadLine()); Employee.InputSalary(newsalary); break; case '4': for (int i = 0; i < emp.Count; i++) { emp[i].PrintUserName(); emp[i].PrintSalary(); } break; case '5': double salaryCount = 0; for (int i = 0; i < emp.Count; i++) { salaryCount = salaryCount +emp[i].GetSalary(); } if (emp.Count != 0) Console.WriteLine(平均薪水为:+ salaryCount/emp.Count); else Console.WriteLine(平均薪水为:0); break; case '6': return; default: Console.WriteLine(输入错误，请重新输入!); break; } } } } }