关于枚举的一些用法

记一些关于枚举的笔记。先定义一个枚举

public enum State
    {
        StatusA,
        StatusB,
        StatusC
    }

然后取其中的值

        static void Main(string[] args)
        {
            Console.WriteLine(State.StatusA);//得到枚举本身的值
            Console.WriteLine((int)State.StatusA);//得到枚举int值

            string db = "StatusA";

            State result = (State)Enum.Parse(typeof(State), db);

            Console.WriteLine(result);

            string dtStr = "StateB";
            State enumResult = (State)Enum.Parse(typeof(State), dtStr);//从数据库中取出的值转换为枚举类型

            string showStr = "";
            switch ((State)Enum.Parse(typeof(State), "StatusB"))
            {
                case State.StatusA:
                    showStr = "已收货";
                    break;
                case State.StatusB:
                    showStr = "未收货";
                    break;
                case State.StatusC:
                    showStr = "配送中";
                    break;
                default:
                    break;
                 
            }
            Console.WriteLine(showStr);

            Console.ReadKey();

            List<Model> list = new Dal().Select();

            foreach (var item in list)
            {
                Console.WriteLine("item.AliceState-->"+item.AliceState);
                Console.WriteLine("(int)item.AliceState-->" + (int)item.AliceState);
            }

            Console.ReadKey();

        }