委托吧？模拟机票按价钱排序……

 先上源代码

using那里多了很多东西，没用的可以去掉。（平时实验用的，所以不知道搞了什么，没注意删除）

using System;
using System.Collections.Generic;
using System.Text;
using System.Data.OleDb;
using cmdTest.DB;
using Model;
using System.Data;
using Microsoft.Office.Interop.Excel;

namespace cmdTest
{
    class sort
    {
        public static void Sort(object[] sortArray,CompareModel model)
        {
            for (int i = 0; i < sortArray.Length; i++)
            {
                for (int j = i + 1; j < sortArray.Length; j++)
                {

                    if (model(sortArray[j],sortArray[i]))
                    {
                        object tmp = sortArray[j];
                        sortArray[j] = sortArray[i];
                        sortArray[i] = tmp;
                    }
                }
            }

        }
    }
    delegate bool CompareModel(object left,object right);


    class Tickets
    {

        public Tickets(string tkName,decimal tkmoney)
        {
            this.money = tkmoney;
            this.tkName = tkName;
        }

        private string tkName;


        public string TkName
        {
            get { return tkName; }
            set { tkName = value; }
        }
        private decimal money;


        public decimal Money
        {
            get { return money; }
            set { money = value; }
        }

        public override string ToString()
        {
            return this.tkName + ":" + this.money + "\n";
        }

        public static bool Comparetk(object lef,object rig)
        {
            Tickets l = lef as Tickets;
            Tickets r = rig as Tickets;

            return l.Money > r.Money;
        }


    }


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

            #region 利用委托实现任意排序

            Tickets[] tkArray ={
                new Tickets("1st ticket",1000)
                ,new Tickets("2nd ticket",3042)
                ,new Tickets("3rd ticket",32)
            };

            for (int i = 0; i < tkArray.Length; i++)
            {
                Console.WriteLine(tkArray[i].ToString());
            }
            Console.WriteLine("after sort");

            sort.Sort(tkArray, new CompareModel(Tickets.Comparetk));

            for (int i = 0; i < tkArray.Length; i++)
            {
                Console.WriteLine(tkArray[i].ToString());
            }
            Console.ReadKey();



            #endregion





        }


    }
}

 

委托真是很过瘾，好像很高级的样子，哈哈。