struct 集合

   

   class Program
    {
        struct xs
        {
            public string name;
            public int age;
           
        }
        static void Main(string[] args)
        {
           
           
            ArrayList al = new ArrayList();
            Console.Write("请输入学生的个数:");
            int n = Convert.ToInt32(Console .ReadLine ());
                for (int i = 1; i <= n; i++)
   {
                xs t = new xs();
                Console.Write("输入第"+i+"个同窗的姓名:");
                t.name = Console.ReadLine();
                Console.Write("输入第" + i + "个同窗的年龄");
                t.age = Convert.ToInt32(Console .ReadLine ());
                al.Add(t);
   }
            for (int i = 1; i <= al.Count-1; i++)
            {
                for (int j = 1 ; j <= al.Count-i; j++)
                {
                   
                    if (((xs)al[j]).age >((xs)al[j-1]).age )
                    {
                       xs tepm = (xs)al[j];
                        al[j] = al[j - 1];
                        al[j - 1] = tepm;
                    }
                }
            }
            for (int i = 0; i <al.Count ; i++)
            {
                Console.WriteLine("姓名" + ((xs)al[i]).name + "\t" + "年龄" + ((xs)al[i]).age);
            }
            Console.ReadLine();
          
        }
    }