Dictionary基本應用

protected void Page_Load(object sender, EventArgs e)
    {
        IList<string> AList = new List<string>();
        AList.Add("KimhillZhangA");
        AList.Add("KimhillZhangB");
        AList.Add("KimhillZhangC");

        IList<string> BList = new List<string>();
        BList.Add("KimhillZhangD");
        BList.Add("KimhillZhangE");
        BList.Add("KimhillZhangF");

        Dictionary<string, IList<string>> dictionary = new Dictionary<string, IList<string>>();
        //添加鍵/值，方法一
        dictionary.Add("A", AList);
        //添加鍵/值，方法二
        dictionary["B"] = BList;

        //遍曆鍵
        foreach (string key in dictionary.Keys)
        {
            //遍曆某鍵的值
            foreach (string val in dictionary[key])
            {
               
            }
        }

        //取某鍵的值,,使用 TryGetValue 方法作為一種更有效方法來檢索值
        if (dictionary.TryGetValue("A", out AList))
        {
            for (int i = 0; i < AList.Count; i++)
            {
                Response.Write(AList[i]);
            }
        }
        //是否包含某鍵
        if (!dictionary.ContainsKey("A"))
        {
            dictionary.Add("A", AList);
        }

        //由於基於 IDictionary 的集合中的每個元素都是一個鍵/值對，因此元素類型既不是鍵的類型，也不是值的類型。而是 KeyValuePair 類型
        foreach (KeyValuePair<string, IList<string>> kvp in dictionary)
        {
            string key = kvp.Key;//key包含了兩個鍵，A，B
            for (int i = 0; i < kvp.Value.Count; i++)
            {
                Response.Write(kvp.Value[i]);
            }
        }

       //定義一個<string,int>的Dictionary，讓它的值進行添加

      Dictionary<string,int> dic = new Dictionary<string,int>();

    //添加兩個鍵為"成績1"，"成績2"；並為它們的值賦為0

     dic["成績1"] = 0;

     dic["成績2"] = 0;

   // 把這兩個值分別加1

     dic["成績1"]++;

     dic["成績2"]++;

    }