.NET实现工资管理系统

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace gongzi
{
    class Program
    {
        static bool flag = true;
        //工人数
        const int NUM = 3;
        //定义二维数组
        static string[,] gong = new string[NUM, 5];
        static void Main(string[] args)
        {
            Console.Title = "工资管理系统";
            jiemian();   //菜单界面
            login();     //登录界面
            while (flag)
            {
                caidan();  //菜单界面
            }
        }
        static void jiemian()
        {
            Console.Clear();
            Console.WriteLine("------工资管理系统------");
            Console.WriteLine("[e-mail]");
            Console.ReadKey();
        }
        static void login()  //登录界面
        {
            Console.WriteLine("请输入用户名：");
            String username = Console.ReadLine();
            Console.WriteLine("请输入密码：");
            String password = Console.ReadLine();
            if (username == "lijia" && password == "123456")
            {
                flag = true;//进入菜单界面
            }
            else
            {
                Console.WriteLine("对不起，你输入的用户名或者密码错误！请重新输入！");
                flag = false;
            }
        }
        static void caidan()
        {
            Console.Clear();
            Console.WriteLine("工资管理系统");
            Console.WriteLine("1.工资录入");
            Console.WriteLine("2.工资查询");
            Console.WriteLine("3.工资修改");
            Console.WriteLine("4.工资统计");
            Console.WriteLine("0.退出系统");
            Console.WriteLine("请输入0-3数字：");
            String choice = Console.ReadLine();
            switch (choice)
            {
                case "1":
                    Console.WriteLine("工资录入");
                    Inputgongzi(gong,NUM);
                    Console.ReadKey();
                    break;
                case "2":
                    Console.WriteLine("工资查询");
                    Outputgongzi(gong, NUM);
                    Console.ReadKey();
                    break;
                case "3":
                    Console.WriteLine("请输入你需要选择的哪种工资的修改：（1基本工资2奖金）");
                    string temp = string.Empty;
                    int t = Convert.ToInt32(Console.ReadLine());
                    switch (t)
                    {
                        case 1:
                            Console.WriteLine("输入您要修改基本工资在二维数组中所在行数(0-2)：");
                            int t1 = Convert.ToInt32(Console.ReadLine());
                            temp = gong[t1, 2];
                            gong[t1, 2] = Console.ReadLine();
                            sfgz();
                            break;
                        case 2:
                            Console.WriteLine("输入您要修改的奖金在二维数组中所在行数(0-2)：");
                            int t2 = Convert.ToInt32(Console.ReadLine());
                            temp = gong[t2, 3];
                            gong[t2, 3] = Console.ReadLine();
                            sfgz();
                            break;
                    }
                    break;
                case "4":
                    double a = Convert.ToDouble(gong[0, 4]);
                    double b = Convert.ToDouble(gong[1, 4]);
                    double c = Convert.ToDouble(gong[2, 4]);
                    if (a > b)
                    {
                        if (a > c)
                        {
                            Console.WriteLine("最高工资:{0}", a);
                            if (b > c)
                            {
                                Console.WriteLine("最低工资:{0}", c);
                            }
                            else
                            {
                                Console.WriteLine("最低工资:{0}", b);
                            }
                        }
                        else
                        {
                            Console.WriteLine("最高工资:{0}", c);
                        }
                    }
                    else
                    {//a<b
                        if (b > c)
                        {
                            Console.WriteLine("最高工资:{0}", b);
                            if (a > c)
                            {
                                Console.WriteLine("最低工资:{0}", c);
                            }
                            else
                            {
                                Console.WriteLine("最低工资:{0}", a);
                            }
                        }
                        else//b<c
                        {
                            Console.WriteLine("最高工资:{0}", c);
                            Console.WriteLine("最低工资:{0}", a);

                        }
                    }
                    double pjzhi = (a + b + c) / 3;
                    Console.WriteLine("工资平均值:{0}", pjzhi);
                    Console.ReadKey();
                    break;
                case "0":
                    flag = false;
                    break;
            }

        }

        static void Inputgongzi(string[,] gong,int NUM)
        {
            string yuangong = string.Empty;
            string[] tmp;
            for (int i = 0; i < NUM; i++)
            {
                Console.WriteLine("请输入第{0}个工人的工号、姓名、基本工资、奖金(以空格分割)：", i + 1);
                yuangong = Console.ReadLine();
                //分割工人信息
                tmp = yuangong.Split(' ');
                for (int j = 0; j < tmp.Length; j++)
                {
                    gong[i, j] = tmp[j];                   
                }
                //计算实发工资
                double sodeshui = 0;
                double sfgz;
                double jbgz = Convert.ToDouble(gong[i, 2]);
                double jj = Convert.ToDouble(gong[i, 3]);
                if ((jbgz + jj) < 5000)
                {
                    sfgz = jbgz + jj - sodeshui;
                    gong[i, 4] = Convert.ToString(sfgz);
                }
                else if ((jbgz + jj) < 8000)
                {
                    sodeshui = jbgz * 0.03;
                }
                else if ((jbgz + jj) < 20000)
                {
                    sodeshui = 3000 * 0.03 + (jbgz - 8000) * 0.15;
                }
                else if ((jbgz + jj) > 20000)
                {
                    sodeshui = 3000 * 0.03 + 2000 * 0.15 + (jbgz - 20000) * 0.25;
                }
                //计算实发工资
                sfgz = jbgz + jj - sodeshui;
                gong[i, 4] = Convert.ToString(sfgz);
            }
        }

        static void sfgz()
        {
            double sodeshui = 0;
            double sfgz;
            int i = 0;
            double jbgz = Convert.ToDouble(gong[i, 2]);
            double jiangjin = Convert.ToDouble(gong[i, 3]);
            if ((jbgz + jiangjin) < 5000)
            {
                sfgz = jbgz + jiangjin - sodeshui;
                gong[i, 4] = Convert.ToString(sfgz);
            }
            else if ((jbgz + jiangjin) < 8000)
            {
                sodeshui = jbgz * 0.03;
            }
            else if ((jbgz + jiangjin) < 20000)
            {
                sodeshui = 3000 * 0.03 + (jbgz - 8000) * 0.15;
            }
            else if ((jbgz + jiangjin) > 20000)
            {
                sodeshui = 3000 * 0.03 + 2000 * 0.15 + (jbgz - 20000) * 0.25;
            }
            //计算实发工资
            sfgz = jbgz + jiangjin - sodeshui;
            gong[i, 4] = Convert.ToString(sfgz);
        }
        static void Outputgongzi(string[,] gong, int NUM)
        {
            Console.WriteLine("-----------工人工资单-------------");
            Console.WriteLine("|----------------------------------|");
            Console.WriteLine("|工 号|姓   名|基本工资|奖   金|实发工资|");
            Console.WriteLine("-----------------------------------|");
            for (int i = 0; i < NUM; i++)
            {
                Console.WriteLine("|{0,5}|{1,8}|{2,8:f2}|{3,8:f2}|{4:8,f2}|", gong[i, 0], gong[i, 1], gong[i, 2], gong[i, 3], gong[i, 4]);
                Console.WriteLine("|---------------------------------------------|");
            }          
        }
    }
}

运行结果：