static void Main(string[] args)
        {
            List<Stud> studs = new List<Stud>() { 
                new Stud() { Name = "B", Score = 80 },
                new Stud() { Name = "C", Score = 30 },
                new Stud() { Name = "A", Score = 69 }, 
            };
            //按成绩排
            //studs.Sort((stud1, stud2) => stud1.Score - stud2.Score);
            //按名字排
            studs.Sort((stud1, stud2) => string.Compare(stud1.Name, stud2.Name));

            foreach (var item in studs)
            {
                Console.WriteLine("Name:{0},Scoe:{1}", item.Name, item.Score);
            }
            Console.ReadKey();
        }
        class Stud
        {
            public string Name { get; set; }
            public int Score { get; set; }
        }