泛型（To be continue...）

• 泛型就是通用

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;


namespace test2
{
    class Program
    {
        static void Main(string[] args)
        {

            //什么是泛型List
            List<string> str_list = new List<string>() { "aaa", "dd", "123123" };
            //Object,有拆箱装箱
            List<object> obj1 = new List<object> { true, new Person(), "123" };

            foreach (var item in str_list)
            {
                Console.WriteLine(item);
            }

            //泛型Dictionary
            Dictionary<int, object> dc1 = new Dictionary<int, object>();
            dc1.Add(1, new Person());
            dc1.Add(2, new Person());

            //自定义泛型,通用性
            MyApp<string> myapp1 = new MyApp<string>("这里是自定义泛型");
            myapp1.show();
            MyApp<int> myapp2 = new MyApp<int>(111);
            myapp2.show();
            //泛型方法
            sayT("88888");

        }
        public class Person
        {
          
        }

        //泛型静态方法
        public static void sayT<T>(T t)
        {
            Console.WriteLine(t.ToString());
        }
        public class MyApp<T> //参数可以写多个
        {
            private T t;

            public MyApp(T t)
            {
                this.t = t;
            }

            public void show()
            {
                Console.WriteLine(t);
            }
        }
    }

}