Dictionary基本应用

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>>();
        //添加键/值，方法一
        dictionary.Add("A", AList);
        //添加键/值，方法二
        dictionary["B"] = BList;

        //遍历键
        foreach (string key in dictionary.Keys)
        {
            //遍历某键的值
            foreach (string val in dictionary[key])
            {
               
            }
        }

        //取某键的值,,使用 TryGetValue 方法作为一种更有效的方法来检索值
        if (dictionary.TryGetValue("A", out AList))
        {
            for (int i = 0; i < AList.Count; i++)
            {
                Response.Write(AList[i]);
            }
        }
        //是否包含某键
        if (!dictionary.ContainsKey("A"))
        {
            dictionary.Add("A", AList);
        }

        //由于基于 IDictionary 的集合中的每个元素都是一个键/值对，因此元素类型既不是键的类型，也不是值的类型。而是 KeyValuePair 类型
        foreach (KeyValuePair<string, IList<string>> kvp in dictionary)
        {
            string key = kvp.Key;//key包含了两个键，A，B
            for (int i = 0; i < kvp.Value.Count; i++)
            {
                Response.Write(kvp.Value[i]);
            }
        }

       //定义一个<string,int>的Dictionary，让它的值进行添加

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

    //添加两个键为"成绩1"，"成绩2"；并为它们的值赋为0

     dic["成绩1"] = 0;

     dic["成绩2"] = 0;

   // 把这两个值分别加1

     dic["成绩1"]++;

     dic["成绩2"]++;

    }