C# 堆棧（Stack）

堆棧（Stack）代表了一個後進先出的對象集合。

using System;using System.Collections; namespace CollectionsApplication{    class Program    {        static void Main(string[] args)        {            Stack st = new Stack();             st.Push('A');             st.Push('M');             st.Push('G');             st.Push('W');                          Console.WriteLine("Current stack: ");            foreach (char c in st)             {                 Console.Write(c + " ");             }              Console.WriteLine();                           st.Push('V');              st.Push('H');               Console.WriteLine("The next poppable value in stack: {0}",                 st.Peek());                Console.WriteLine("Current stack: ");                            foreach (char c in st)                  {                      Console.Write(c + " ");                   }                    Console.WriteLine();                      Console.WriteLine("Removing values ");                     st.Pop();                     st.Pop();                     st.Pop();                                  Console.WriteLine("Current stack: ");                     foreach (char c in st)                     {                        Console.Write(c + " ");                     }                 }             }}

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