System.Collections.Generic.Dictionary<>;       //键/值对集合

 System.Collections.Generic.KeyValuePair<>;     //键/值对结构, 作为 Dictionary<> 的一个元素存在

 System.Collections.Generic.SortedDictionary<>; //相当于 Key 能自动排序 Dictionary<>

 System.Collections.Generic.SortedList<>;       //和 SortedDictionary<> 功能相似, 但内部算法不同, 其 Keys、Values 可通过索引访问

 System.Collections.Generic.HashSet<>;   //无序、无重复的元素集合

 System.Collections.Generic.SortedSet<>; //相当于能自动排序的 HashSet<>

 System.Collections.Generic.List<>;      //相当于泛型的 ArrayList, 元素可重复、可排序、可插入、可索引访问

 System.Collections.Generic.Queue<>; //队列, 先进先出

 System.Collections.Generic.Stack<>; //堆栈, 后进先出

 System.Collections.Generic.LinkedList<>;     //双向链表

 System.Collections.Generic.LinkedListNode<>; //LinkedList<> 的节点

 System.Collections.Generic.SynchronizedCollection<>;         //线程安全的集合

 System.Collections.Generic.SynchronizedReadOnlyCollection<>; //线程安全的只读集合

 System.Collections.Generic.SynchronizedKeyedCollection<>;    //线程安全的键/值集合

 Dictionary<>、KeyValuePair<>:

 protected void Button1_Click(object sender, EventArgs e)

 {

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

     dict.Add("K1", );

     dict["K2"] = ;

     dict.Add("K3", );

     string str = "";

     foreach (KeyValuePair<string, int> k in dict)

     {

         str += string.Format("{0}-{1}; ", k.Key, k.Value); //K1-123; K2-456; K3-789;

     }

     TextBox1.Text = str;

 }

 SortedDictionary<>:

 protected void Button1_Click(object sender, EventArgs e)

 {

     SortedDictionary<string, int> dict = new SortedDictionary<string, int>();

     dict.Add("K3", );

     dict["K1"] = ;

     dict.Add("K2", );

     SortedDictionary<string, int>.KeyCollection ks = dict.Keys;

     SortedDictionary<string, int>.ValueCollection vs = dict.Values;

     string s1, s2, s3;

     s1 = s2 = s3 = "";

     foreach (KeyValuePair<string, int> k in dict)

     {

         s1 += string.Format("{0}-{1}; ", k.Key, k.Value); //K1-111; K2-222; K3-333;

     }

     foreach (string s in ks) { s2 += s + "; "; }          //K1; K2; K3;

     foreach (int n in vs) { s3 += n.ToString() + "; "; }  //111; 222; 333; 

     TextBox1.Text = s1 + "\\n" + s2 + "\\n" + s3;

 }

 SortedList<>:

 protected void Button1_Click(object sender, EventArgs e)

 {

     SortedList<string, int> dict = new SortedList<string, int>();

     dict.Add("K3", );

     dict["K1"] = ;

     dict.Add("K2", );

     string s1, s2, s3;

     s1 = s2 = s3 = "";

     foreach (KeyValuePair<string, int> k in dict)

     {

         s1 += string.Format("{0}-{1}; ", k.Key, k.Value); //K1-111; K2-222; K3-333;

     }

     s2 = dict.Keys[];              //K1

     s3 = dict.Values[].ToString(); //

     TextBox1.Text = s1 + "\\n" + s2 + "\\n" + s3;

 }

 HashSet<>、SortedSet<>:

 protected void Button1_Click(object sender, EventArgs e)

 {

     HashSet<string> hs = new HashSet<string>();

     hs.Add("ccc");

     hs.Add("bbb");

     hs.Add("aaa");

     SortedSet<string> ss = new SortedSet<string>();

     ss.Add("ccc");

     ss.Add("bbb");

     ss.Add("aaa");

     string s1 = "", s2 = "";

     foreach (string s in hs) { s1 += s + " "; } //ccc bbb aaa

     foreach (string s in ss) { s2 += s + " "; } //aaa bbb ccc 

     TextBox1.Text = s1 + "\\n" + s2;

 }

 List<>:

 protected void Button1_Click(object sender, EventArgs e)

 {

     List<int> list = new List<int>();

     list.Add();

     list.Add();

     list.Insert(, );

     string s1, s2 = "", s3, s4 = "";

     s1 = list[].ToString(); //

     for (int i = ; i < list.Count; i++) { s2 += list[i].ToString() + " "; } //33 11 22

     list.Sort();

     s3 = list[].ToString(); //

     foreach (int n in list) { s4 += n.ToString() + " "; } //11 22 33 

     TextBox1.Text = s1 + "\\n" + s2 + "\\n" + s3 + "\\n" + s4;

 }

 LinkedList<>、LinkedListNode<>:

 protected void Button1_Click(object sender, EventArgs e)

 {

     LinkedList<string> list = new LinkedList<string>();

     list.AddFirst("aaa");

     list.AddLast("bbb");

     list.AddFirst("ccc");

     list.AddAfter(list.First, "ddd");

     list.AddBefore(list.Last, "eee");

     string s1 = "", s2 = "", s3 = "", s4 = "", s5 = "";

     foreach (string s in list) { s1 += s + " "; } //ccc ddd aaa eee bbb 

     LinkedListNode<string> node = list.First;

     s2 = node.Value.ToString();         //ccc

     node = node.Next;

     s3 = node.Value.ToString();         //ddd

     node = list.Last.Previous.Previous;

     s4 = node.Value.ToString();         //aaa

     list.Remove("eee");

     list.RemoveFirst();

     list.RemoveLast();

     node = list.First;

     while (node != null)

     {

         s5 += node.Value.ToString() + " "; //ddd aaa

         node = node.Next;

     }

     TextBox1.Text = s1 + "\\n" + s2 + "\\n" + s3 + "\\n" + s4 + "\\n" + s5;

 }