public class Tools{
     public string Name{get ;set;}
}

            #region 0.1ArrayList集合

            ////告诉内存,我要存储内容

            //ArrayList list = new ArrayList();

            ////方法  Add方法

            //list.Add("李小龙");

            //list.Add("成龙");

            //list.Add("甄子丹");

            ////0.1打印出每个人的名称

            //foreach (Object item in list)

            //{

            //    Console.WriteLine("姓名为:~~~~~~~~~~~~~~~~~~" + item + "~~~~~~~~~~~~~~~~~");

            //}

            ////0.2单独获取信息

            //Console.WriteLine("单独获取信息:" + list[1]);

            ////0.3删除

            //list.Remove("李小龙");

            //Console.WriteLine("_______________删除后__________________");

            //foreach (Object item in list)

            //{

            //    Console.WriteLine("姓名为:~~~~~~~~~~~~~~~~~~" + item + "~~~~~~~~~~~~~~~~~");

            //}

            ////0.4添加

            //Console.WriteLine("添加");

            //list.Add("李小龙");

            //Console.WriteLine("!!!!!!!!!!!!!!添加!!!!!!!!!!!!!!!!!!!!!");

            //foreach (Object item in list)

            //{

            //    Console.WriteLine("姓名为:~~~~~~~~~~~~~~~~~~" + item + "~~~~~~~~~~~~~~~~~");

            //}

            ////0.5添加      Add向后追加

            //Console.WriteLine("向后追加");

            //list.Insert(1, "李谦");

            //Console.WriteLine("!!!!!!!!!!!!!!向后追加!!!!!!!!!!!!!!!!!!!!!");

            //foreach (Object item in list)

            //{

            //    Console.WriteLine("姓名为:~~~~~~~~~~~~~~~~~~" + item + "~~~~~~~~~~~~~~~~~");

            //}

            ////0.6判断李小龙是否在名称为list中

            //bool flag = list.Contains("李小龙");

            //Console.WriteLine(flag);

            ////修改     "李谦"  为  "刘谦"

            ////数组中元素个数用XX.Length  集合元素用XX.count

            //for (int i = 0; i < list.Count; i++)

            //{

            //    if (list.Contains("李谦"))

            //    {

            //        //存在  就修改

            //        if (list[i].Equals("李谦"))

            //        {

            //            list[i] = "刘谦";

            //            break;

            //        }

            //    }

            //    else

            //    {

            //        Console.WriteLine("没有该人,如何修改!!");

            //    }

            //}

            //Console.WriteLine("!!!!!!!!!!!!!!修改后!!!!!!!!!!!!!!!!!!!!!");

            //foreach (Object item in list)

            //{

            //    Console.WriteLine("姓名为:~~~~~~~~~~~~~~~~~~" + item + "~~~~~~~~~~~~~~~~~");

            //}

            //方法二

           // //ArrayList list = new ArrayList();

           // Tools p1 = new Tools();

           // p1.Name = "六道神君";

           // Tools p2 = new Tools(); ;

           // p2.Name = "天使神茫";

           // Tools p3 = new Tools();

           // p3.Name = "魔君";

           // list.Add(p1);

           // list.Add(p2);

           // list.Add(p3);

           // Tools p4 = new Tools();

           // p4.Name = "邪神";

           // // list.Add(p4);    //按顺序排列

           // list.Insert(0, p4);//下标定到0

           // //遍历集合中所有的元素

           // foreach (Tools person in list)

           // {

           //     Console.WriteLine(person.Name);

           // }

           // Console.WriteLine("-------------------------------删除后--------------------------");

           //// 判断所

           // if (list.Contains(p4))

           // {

           //     list.RemoveAt(0);//下标

           //  // list.Remove(p4);//实际存在

           // }

           // else

           // {

           //     Console.WriteLine("-------------数据不存在-----------");

           // }

           // foreach (Tools person in list)

           // {

           //     Console.WriteLine(person.Name);

           // }

             Hashtable table=new Hashtable();

              Person p1=new Person();

            p1.Name = "李连杰";

            Person p2 = new Person();

            p2.Name = "巩俐";

            Person p3 = new Person();

            p3.Name = "张靓颖";

            table.Add("", p1);

            table.Add("", p2);

            table.Add("", p3);

            //遍历HashTable三种方案

            /*

             * 无论是java还是C#，引用类型对象都会自动调用它的ToString()

                ToString()命名空间.类名

             */

            //方式一：通过key获取key和value

            foreach (string key in table.Keys)

            {

                //通过key获取value

                Console.WriteLine("key是{0}\tvalue是{1}", key, ((Person) table[key]).Name);

            }

            Console.WriteLine("===========================");

            //方式二：只获取value

            foreach (Object value in table.Values)

            {

                Console.WriteLine(((Person)value).Name);

            }

            Console.WriteLine("===================================");

            //方式三：key和value同时遍历  key+value

            foreach (DictionaryEntry item in table)

            {

                Console.WriteLine("key是{0}\tvalue是{1}",item.Key,((Person)item.Value).Name);

            }

            //删除 Remove()

           // table.Remove("001");

            //修改 咱们修改“002” key对应value值得name属性为“大美丽”

            //先判断 是否存在某个key

            if (table.ContainsKey("")) //存在该key

            {

                Person p = (Person) table[""];

                p.Name = "大美丽";

            }

            Console.WriteLine("==========修改后==========");

            //方式三：key和value同时遍历  key+value

            foreach (DictionaryEntry item in table)

            {

                Console.WriteLine("key是{0}\tvalue是{1}", item.Key, ((Person)item.Value).Name);

            }

            //Console.WriteLine("==========删除后==========");

            ////方式三：key和value同时遍历  key+value

            //foreach (DictionaryEntry item in table)

            //{

            //    Console.WriteLine("key是{0}\tvalue是{1}", item.Key, ((Person)item.Value).Name);

            //}

            Console.ReadLine();

            #endregion