C#如何遍历Dictionary

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

foreach ( KeyValuePair<string, int> pair in d)

{

     Console.WriteLine("{0}, {1}",

                pair.Key,

                pair.Value);

        }

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

            //C#3.0以上版本

            foreach (var item in list)

            {

                Console.WriteLine(item.Key + item.Value);

            }

            //KeyValuePair<T,K>

            foreach ( KeyValuePair<string, int> kv in list)

            {

                Console.WriteLine(kv.Key + kv.Value);

            }

            //通过键的集合取

            foreach (string key in list.Keys)

            {

                Console.WriteLine(key + list[key]);

            }

            //直接取值

            foreach (int val in list.Values)

            {

                Console.WriteLine(val);

            }

            //非要采用for的方法也可

            List<string> test = new List<string>(list.Keys);

            for (int i = 0; i < list.Count; i++)

            {

                Console.WriteLine(test[i] + list[test[i]]);

            }

IDictionary dictionary = new Hashtable();

foreach (DictionaryEntry entry in dictionary)

{

   Object key = entry.Key;

    Object val = entry.Value;

}