using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        List<string> primeNumbers = new List<string>();

primeNumbers.Add("1"); // adding elements using add() method

primeNumbers.Add("3");

primeNumbers.Add("5");

primeNumbers.Add("7");

​

List<string> cities = new List<string>();

cities.Add("New York");

cities.Add("London");

cities.Add("Mumbai");

cities.Add("Chicago");

​

var bigCities = new List<string>()

                        { "New York",

                            "London",

                            "Mumbai",

                            "Chicago"

                        };

var students = new List<Student>() {

                new Student(){ Id = 1, Name="Bill"},

                new Student(){ Id = 2, Name="Steve"},

                new Student(){ Id = 3, Name="Ram"},

                new Student(){ Id = 4, Name="Abdul"}

            };

​

var classes = new List<Class>(){

    new Class(){ Id = 1, className = "Math", descreption = "About Math", time = "Friday"},

    new Class(){ Id = 2, className = "Chinese", descreption = "About Chinese", time = "Monday"},

    new Class(){ Id = 3, className = "English", descreption = "About English", time = "Tuesday"},

    new Class(){ Id = 4, className = "Art", descreption = "About Art", time = "Friday"}

};

​

//**********************************************************************//

​

foreach (var item in classes)

 {

   Console.WriteLine($"{item.Id.ToString()} & 姓名為: {item.className}");

 }

​

getEverylist(classes);

getEverylist(students);

foreach (var item in students)

 {

   Console.WriteLine($"{item.Id.ToString()} & 姓名為: {item.Name}");

 }

    }

static List<T> getEverylist<T>(List<T> gentle)

{

  return gentle;

}

    class Student

{

  public int Id { get; set; }

  public string? Name { get; set; }

}

​

class Class

{

  public int Id { get; set; }

  public string? className { get; set; }

  public string? descreption { get; set; }

  public string? time { get; set; }

}

}