C#数组 List、Dictionary 、Arrary、ArrayList

 #region Dictionary  泛型集合，动态修改查询、查询和排序
            Dictionary<string, string> dic = new Dictionary<string, string>();
            dic.Add("北京", "1");
            dic.Add("山西", "2");
            dic.Add("深圳", "3");

            if (!dic.ContainsKey("山西"))
            {
                dic.Add("山西", "5");
            }
            foreach (KeyValuePair<string, string> item in dic)
            {
                Console.WriteLine("Key:{0},Value{1}", item.Key, item.Value);
            }
            //排序遍历
            var result = from d in dic orderby d.Key select d;
            foreach (KeyValuePair<string, string> item in result)
            {
                Console.WriteLine("Key:{0},Value{1}", item.Key, item.Value);
            }
            #endregion
 #region Dictionary  泛型集合，动态修改查询、查询和排序