C# Dictionary 應用

標籤：

1、字典定義並添加資料

            Dictionary<string, string> dic = new Dictionary<string, string>();            dic.Add("a", "北京");            dic.Add("c", "上海");            dic.Add("b", "廣州");            dic.Add("d", "深圳");

2、遍曆字典項

            foreach (KeyValuePair<string, string> d in dic)            {                Console.WriteLine(d.Key + "  " + d.Value);            }

            foreach (var itm in dic)            {                Console.WriteLine(itm.Key + "  " + itm.Value);            }

            foreach (string s in dic.Keys)            {                Console.WriteLine(s + "  " + dic[s]);            }            foreach (string s in dic.Values)            {                Console.WriteLine(s);            }

3、字典排序並輸出

            字典排序：List<KeyValuePair<string,string>> list = dic.OrderBy(r => r.Key).ToList<KeyValuePair<string, string>>();
　　　　　　　//dic =dic.OrderByDescending(r => r.Key).ToDictionary(r => r.Key, r => r.Value);            foreach (KeyValuePair<string, string> kv in list)            {                Console.WriteLine(kv.Key + "  " + kv.Value);            }

 

C# Dictionary 應用