Hashtable无序,用Dictionary代替

//输出1234
public void TestDictionary() 
{
    Dictionary<string, int> dic = new Dictionary<string, int>();
    dic.Add("One", 1);
    dic.Add("Two", 2);
    dic.Add("Three", 3);
    dic.Add("Four", 4);

    foreach (var r in dic.Keys) 
    {
        Response.Write(dic[r]);
    }
}

//输出2341 
public void TestHashtable() 
{
    Hashtable ht = new Hashtable();
    ht.Add("One", 1);
    ht.Add("Two", 2);
    ht.Add("Three", 3);
    ht.Add("Four", 4);

    foreach (var r in ht.Keys)
    {
        Response.Write(ht[r]);
    }
}