泛型

泛型约束小计：

class Program
    {
        static void Main(string[] args)
        {
            {
                var generice = new GenericClass();
           
                generice.ShowInt(11);
                generice.ShowDateTime(DateTime.Now);
                generice.ShowPeople(new People {Id = 11, Name = "Tom"});
            }

            {
                Console.WriteLine("---------------------------------------");
                var generice = new GenericClass2();
                generice.ShowObj(11);
                generice.ShowObj(DateTime.Now);
                generice.ShowObj(new People {Id = 11, Name = "Tom"});
            }

            {
                Console.WriteLine("---------------------------------------");
                var generice = new GenericClass3();
                generice.ShowT<int>(11);
                generice.ShowT<DateTime>(DateTime.Now);
                generice.ShowT<People>(new People { Id = 11, Name = "Tom" });
            }

            Console.ReadKey();
        }
    }
    public class GenericClass3
    {
        public void ShowT<T>(T t)
        {
            Console.WriteLine("ShowT print {0},ShowT Parament Type Is {1}", t, t.GetType());
        }
    }

    public class GenericClass2
    {
        public void ShowObj(object obj)
        {
            Console.WriteLine("ShowObj print {0},ShowObj Parament Type Is {1}", obj, obj.GetType());
        }
    }

    public class GenericClass
    {
        public void ShowInt(int n)
        {
            Console.WriteLine("ShowInt print {0},ShowInt Parament Type Is {1}", n, n.GetType());
        }
        public void ShowDateTime(DateTime dt)
        {
            Console.WriteLine("ShowDateTime print {0},ShowDateTime Parament Type Is {1}", dt, dt.GetType());
        }
        public void ShowPeople(People people)
        {
            Console.WriteLine("ShowPeople print {0},ShowPeople Parament Type Is {1}", people, people.GetType());
        }
    }

    public class People
    {
        public int Id { get; internal set; }
        public string Name { get; internal set; }
    }