把一些變量保存在Hashtable中，怎么才能遍歷其值？

//定義Hashtable
Hashtable Info = new Hashtable()

//給Hashtable賦值
Info.Add("username","tiger");
Info.Add("email","tiger@tiger.com");
Info.Add("qq","888888");

//遍歷Hashtable中的值并輸出
foreach (DictionaryEntry each in Info)
{
    Response.Write(each.Key.ToString() + " == " + each.Value.ToString() + "<br />");
}

//輸出文字為：
username = tiger
email = tiger@tiger.com
qq = 888888