学生信息表

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

namespace 学生信息表
{
    class Student
    {
        public string name
        {
            get;
            set;
        }

        public string id
        {
            get;
            set;
        }

        public string sex
        {
            get;
            set;
        }

        public  Student()
        {
 
        }

        public  Student(string name,string id,string sex)
        {
            this.name = name;
            this.id = id;
            this.sex = sex;
        }

        public override string ToString()
        {
            return this.name + "\t" + this.id + "\t" + this.sex;
        }
 
    }
}

 

 

 

 

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

namespace 学生信息表
{
    class Program
    {
        public static Hashtable hs = new Hashtable();

        static void Main(string[] args)
        {
            menu();
            while (true)
            {
                Console.WriteLine("请输入你的功能代号：");

                string str = Console.ReadLine();

                int a;

                if (int.TryParse(str, out a))
                {
                    if (a == 9)
                    {
                        Console.WriteLine("退出");
                        break;
                    }
                    else if (a == 0)
                    {
                        showmenu1();
                    }
                    else if (a == 1)
                    {
                        showmenu2();
                    }
                    else if (a == 2)
                    {
                        showmenu3();
                    }
                    else if (a == 3)
                    {
                        showmenu4();
                    }
                    else if (a == 4)
                    {
                        showmenu5();
                    }
                    else if (a == 5)
                    {
                        showmenu6();
                    }
                    else if (a == 6)
                    {
                        showmenu7();
                    }

                    else if (a == 9)
                    {
                        showmenu9();
                    }
                }
                else
                {
                    Console.WriteLine("请正确的输入序号");
                }
            }

            Console.ReadLine();
        }

        public static void showmenu1()
        {
            Console.WriteLine("0.显示菜单");
        }

        public static void showmenu2()
        {
            Console.WriteLine("1.查看列表");
            Console.WriteLine("=======学生列表=======");
            Console.WriteLine("学号" + "\t" + "姓名" + "\t" + "性别");
            foreach (object obj in hs.Values)
            {
                Console.WriteLine(obj);
            }
        }

        public static void showmenu3()
        {
            Console.WriteLine("2.录入");
            Console.WriteLine("输入学号，姓名，性别以空格分开");
            string into = Console.ReadLine();
            string[] arr = into.Split(' ');
            int a;
            if (int.TryParse(arr[0], out a))
            {
                if (arr[1].Length > 1 && arr[1].Length <= 3)
                {
                    if (arr[2] == "男" || arr[2] == "女")
                    {
                        Student p = new Student(arr[0], arr[1], arr[2]);
                        hs.Add(arr[0], p);
                        Console.WriteLine("=======学生列表=======");
                        Console.WriteLine("学号" + "\t" + "姓名" + "\t" + "性别");
                        Console.WriteLine(hs[arr[0]]);
                    }
                    else
                    {
                        Console.WriteLine("性别必须是男或者女");
                    }
                }
                else
                {
                    Console.WriteLine("姓名长度必须大于一位小于四位");
                }

            }
            else
            {
                Console.WriteLine("请重新输入正确的学号");
            }
        }

        public static void showmenu4()
        {
            Console.WriteLine("3.删除");
            Console.WriteLine("=======学生列表=======");
            Console.WriteLine("学号" + "\t" + "姓名" + "\t" + "性别");
            string num = Console.ReadLine();
            Console.WriteLine("1：确认删除");
            Console.WriteLine("2：取消删除");
            int number = int.Parse(Console.ReadLine());
            if (number == 1)
            {
                Console.WriteLine("正在删除");
                if (hs.ContainsKey(num))
                {
                    hs.Remove(num);
                }
                else
                {
                    Console.WriteLine("没有你输入存在的数据，请重新输入！");
                }
            }
            else
            {
                Console.WriteLine("取消返回");
            }
          
        }

        public static void showmenu5()
        {
            Console.WriteLine("4.修改");
            Console.WriteLine("=======学生列表=======");
            Console.WriteLine("学号" + "\t" + "姓名" + "\t" + "性别");
            string delete = Console.ReadLine();
            hs.Remove(delete);
            string into = Console.ReadLine();
            string[] arr = into.Split(' ');  
            Student p = new Student(arr[0], arr[1], arr[2]);
            hs.Add(arr[0], p);
        }

        public static void showmenu6()
        {
            Console.WriteLine("5.查询");
            Console.WriteLine("=======学生列表=======");
            Console.WriteLine("学号" + "\t" + "姓名" + "\t" + "性别");
            string see = Console.ReadLine();
            Console.WriteLine(hs[see]);
        }

        public static void showmenu7()
        {
            Console.WriteLine("6.清屏");
            Console.WriteLine("=======学生列表=======");
            Console.WriteLine("学号" + "\t" + "姓名" + "\t" + "性别");
            Console.Clear();
            menu();
        }

        public static void showmenu9()
        {
            Console.WriteLine("9.退出");
          

        }

        public static void menu()
        {
            Console.WriteLine("欢迎使用学生管理系统");
            Console.WriteLine("0.显示菜单");
            Console.WriteLine("1.查看列表");
            Console.WriteLine("2.录入");
            Console.WriteLine("3.删除");
            Console.WriteLine("4.修改");
            Console.WriteLine("5.查询");
            Console.WriteLine("6.清屏");
            Console.WriteLine("9.退出");

        }
    }

}

 

一个简单的学生情况信息表，我是才学的。感觉问题太多，希望你们给我我指导！