泛型使用Demo

using System;

using System.Collections.Generic;

namespace MyCollection

{

    public class CBase

    {

        private string id = "CBase";

        public virtual string Id

        {

            get { return id; }

            set { id = value; }

        }

    }

    public class CActor : CBase

    {

        private string id = "CActor";

        public override string Id

        {

            get { return id; }

            set { base.Id = value; }

        }

        public string resource;

    }

    public class CBullet : CBase

    {

        private string id = "CBullet";

        public override string Id

        {

            get { return id; }

            set { base.Id = value; }

        }

        public string effect;

    }

    public class GenericDemo

    {

        public static CBullet MBullet = new CBullet();

        public static CActor MActor = new CActor();

        public static Dictionary<string, CBase> dict = new Dictionary<string, CBase>();

        public static T GetInfo<T>(string id) where T : CBase

        {

            CBase mBase;

            if (dict.TryGetValue(id, out mBase))

            {

                return (T)mBase;

            }

            return null;

        }

        public static void Main(string[] args)

        {

            //dict = new Dictionary<string, CBase>();

            dict.Add("actor", MActor);

            dict.Add("bullet", MBullet);

            CActor actor1 = GetInfo<CActor>("actor");

            CBullet bullet1 = GetInfo<CBullet>("bullet");

            Console.WriteLine("T= \"{0}\" ,id={1} \nT= \"{2}\" ,id={3}", actor1.GetType(), actor1.Id, bullet1.GetType(), bullet1.Id);

        }

    }

}