C#集合

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Text;
  4 using System.Collections;
  5 
  6 namespace ConsoleApplication1
  7 {
  8     class Program
  9     {
 10         static void Main(string[] args)
 11         {
 12             /*----------------
 13              * 动态数组       |
 14              * ---------------
 15              * 
 16             ArrayList al = new ArrayList();
 17             al.Add("a");
 18             al.Add(65);
 19             int count = al.Count;
 20             al.Capacity = 5; //设置容量
 21             al.RemoveAt(0);
 22             al.Insert(0, 66);          
 23             Console.WriteLine(al[0]);
 24             al.Clear();*/
 25 
 26             /*------------
 27              * 栈-后进先出|
 28              * -----------
 29              * 
 30             Stack s = new Stack();
 31             s.Push(1);
 32             s.Push(10);
 33             int count = s.Count;//2
 34             Console.WriteLine(s.Pop());//10
 35             Console.WriteLine(s.Pop());//1*/
 36 
 37             /*--------------
 38              * 队列-先进先出|
 39              * -------------
 40              * 
 41             Queue q = new Queue();
 42             q.Enqueue('A'); // 增加元素
 43             q.Enqueue('M');
 44             q.Enqueue('G');
 45             q.Enqueue('W');
 46 
 47             Console.WriteLine("Current queue: "); // A M G W 
 48             foreach (char c in q)
 49                 Console.Write(c + " ");
 50             Console.WriteLine();
 51             q.Enqueue('V');
 52             q.Enqueue('H');
 53             Console.WriteLine("Current queue: ");  // A M G W V H      
 54             foreach (char c in q)
 55                 Console.Write(c + " ");
 56             Console.WriteLine();
 57             Console.WriteLine("Removing some values ");
 58             char ch = (char)q.Dequeue();          //移除元素
 59             Console.WriteLine("The removed value: {0}", ch); // A
 60             ch = (char)q.Dequeue();
 61             Console.WriteLine("The removed value: {0}", ch); // M */
 62 
 63 
 64             /*-------------------
 65               * 哈希表-键与值对应|
 66               * -----------------
 67              Hashtable ht = new Hashtable(); //声明ht
 68              //key值唯一,value值可以重复.
 69              ht.Add("E", "e");//添加key/键值对
 70              ht.Add("A", "a");
 71              ht.Add("C", "c");
 72              ht.Add("B", "b");
 73              foreach (string sv in ht.Values)
 74              {
 75                  Console.WriteLine(sv);
 76              }
 77              foreach (string sv in ht.Keys)
 78              {
 79                  Console.WriteLine(sv);
 80              }
 81 
 82              string s = (string)ht["A"];
 83              if (ht.ContainsKey("E")) //判断哈希表是否包含特定键,其返回值为true或false
 84                  Console.WriteLine("the E key:exist");
 85              ht.Remove("C");//移除一个key/键值对
 86              Console.WriteLine(ht["A"]);//此处输出a
 87              ht.Clear();//移除所有元素
 88              Console.WriteLine(ht["A"]); //此处将不会有任何输出*/
 89              /*
 90               * Hashtable常用的属性有Count、Keys、Values，
 91               * 其中：Count是获取Hashtable中的元素个数，
 92               *       Keys表示获取 Hashtable 中的键的集合，
 93               *       Values 表示 Hashtable 中的所有值的集合。
 94               */
 95             
 96 
 97 
 98 
 99             Console.ReadKey();
100         }
101     }
102 }