using System;namespace ZhuaJiuNS {    public class ZhuaJiu {        public static void Main() {            string[] namelist = null;            CreateNameList(ref namelist);            string[] afternamelist;            Zhua(namelist, out afternamelist);            PrintNameList(afternamelist);            Console.ReadKey();        }        public static void CreateNameList(ref string[] beforelist) {            beforelist = new string[5];            beforelist[0] = "张三";            beforelist[1] = "李四";            beforelist[2] = "王五";            beforelist[3] = "赵六";            beforelist[4] = "孙七";        }        public static void Zhua(string[] beforelist, out string[] afterlist) {            afterlist = new string[1];            int tmpindex = -1;            System.Random ran = new Random();            if (beforelist.Length > 0) {                Console.WriteLine("开始抓阄了：");                int tmplength = beforelist.Length;                for (int i = 0; i < tmplength; i++) {                    Console.WriteLine("请回车进行抓阄");                    Console.ReadLine();                    tmpindex = ran.Next(0, beforelist.Length);                    Console.WriteLine("本次抓到的人为" + beforelist[tmpindex]);                    InsertAfterList(beforelist[tmpindex], ref afterlist);                    RemoveFromBeforeList(tmpindex, ref beforelist);                }                Console.WriteLine("抓阄结束");            }        }        public static void InsertAfterList(string insertname, ref string[] afterlist) {            afterlist[afterlist.Length - 1] = insertname;            string[] longlist = new string[(afterlist.Length + 1)];            for (int i = 0; i < afterlist.Length; i++) {                longlist[i] = afterlist[i];            }            afterlist = longlist;            longlist = null;        }        public static void RemoveFromBeforeList(int removeindex, ref string[] beforelist) {            if (removeindex == (beforelist.Length - 1)) {                beforelist[removeindex] = "";            }            else {                int i = 0;                for (i = removeindex; i < (beforelist.Length - 1); i++) {                    beforelist[i] = beforelist[i + 1];                }            }            if (beforelist.Length > 1) {                string[] shortlist = new string[(beforelist.Length - 1)];                for (int i = 0; i < beforelist.Length - 1; i++) {                    shortlist[i] = beforelist[i];                }                beforelist = shortlist;                shortlist = null;            }            else {                beforelist = null;            }        }        public static void PrintNameList(string[] list) {            Console.WriteLine("下面输出人员列表：");            for (int i = 0; i < list.Length; i++) {                Console.Write(list[i] + "\t");            }            Console.WriteLine();            Console.WriteLine("输出人员列表结束");        }    }}