18._7章小结及任务实施

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _18._7章小结及任务实施
{
    class QQState
    {
        string[] qqState = {"在线","离线","Q我","隐身","忙碌" };
        private int getState(string stringState)
        { int i = 0;
           foreach(string State in qqState)
            {
                if (State == stringState) return i;
                i++;
            }
            return -1;
        }
       public int this[string state]
        {
            get { return getState(state); }

        }

    }

    class Program
    {
        static void Main(string[] args)
        {
            QQState qs = new QQState();
            Console.WriteLine("在线：{0}",qs["在线"]);
            Console.WriteLine("离线：{0}", qs["离线"]);
            Console.WriteLine("断线：{0}", qs["断线"]);
            Console.Read();
        }
    }
}