适合初学者看的学生信息系统，C#小白编写

建了两个类

第一个学生类

第二个教师类

代码如下，加入了四个学生

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

namespace HomeWork
{
    class Program
    {
        static void Main(string[] args)
        {
            
            student stu = new student();
            student zhang = new student();
            zhang.Name = "小明";
            zhang.No = 1;
            zhang.Tel = 999;
            zhang.Stature = 170;

            student li = new student();
            li.Name = "小张";
            li.No = 2;
            li.Tel = 888;
            li.Stature = 175;

            student hong = new student();
            hong.Name = "小红";
            hong.No = 4;
            hong.Tel = 666;
            hong.Stature = 165;

            student ming = new student();
            ming.Name = "小李";
            ming.No = 3;
            ming.Tel = 777;
            ming.Stature = 178;

            teacher tea = new teacher();
            List List = new List();
            List.Add(zhang);
            List.Add(li);
            List.Add(ming);
            List.Add(hong);
            for(int i = 1; i>0; i++)
            {
                Console.WriteLine("请问要查询哪位学生的信息？");
                Console.WriteLine("输入学号1-4单个查看，输入5则查看全部，输入6退出。");
                int flag = Convert.ToInt32(Console.ReadLine());
                Console.WriteLine("************************************");
            if (flag == 1)
            {
                tea.Teacher(zhang);
            }
            if (flag == 2)
            {
                tea.Teacher(li);
            }
            if (flag == 3)
            {
                tea.Teacher(ming);
            }
            if (flag == 4)
            {
                tea.Teacher(hong);
            }
            if (flag == 5)
            {
                tea.teache(List);
            }            
            if(flag == 6)
            {
                 break;
            }

        }
                        
            Console.ReadLine();
        }
    }
}