Console.Write("Hello World!");
与
Console.WriteLine("Hello World!");

区别：前者输出后不换行，后者输出后自动换行

Console.ReadLine() 会等待直到用户按下回车，一次读入一行。

Console.ReadKey() 则是等待用户按下任意键，一次读入一个字符。

class Program
{
   private List<Student> allStu = newList<Student>();
   string yesORno;
   bool flag = true;
   
   public void AddStudent()
   {
       while (flag)
       {
           Student s = new Student();
           Console.WriteLine("请输入学生姓名:");
           s.StuName = Console.ReadLine();
           Console.WriteLine("请输入学生学号");
           s.StuNum = Console.ReadLine();
           allStu.Add(s);

           Console.WriteLine("是否继续输入:请输入y或者n");
           yesORno =Console.ReadKey().Key.ToString();
           
           switch (yesORno)
           {
               case "Y":
                   flag = true;
                   break;
               case "N":
                   flag = false;
                   break;
           }
       }
   }

   public void ShowStu()
   {
       for (int i = 0; i < allStu.Count; i++)
       {
           Console.WriteLine(allStu[i].ToString());
       }
   }

   static void Main(string[] args)
   {
       Program p = new Program();
       p.AddStudent();
       p.ShowStu();
       Console.ReadLine();
   }
}

 

class Student
{
   private string stuName;

   public string StuName
   {
       get { return stuName; }
       set { stuName = value; }
   }

   private string stuNum;

   public string StuNum
   {
       get { return stuNum; }
       set { stuNum = value; }
   }

   public override string ToString()
   {
       return "姓名" + stuName + "......." + "学号" + stuNum;
   }
}