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标题: C# 名字空间 [打印本页]
作者: 失的猛    时间: 2011-12-21 08:41
标题: C# 名字空间

C#语法之名字空间

名字空间在内部和外部都是组织应用程序的好办法，很容易组织层次关系

名字空间默认类型internal.

为了结构化地管理程序,经常使用名字空间,名字空间的声明如下:

Namespace 空间

{

名字空间

}

 

在名字空间中，可以声明一个或多个：另一个名字空间、类、接口、结构、枚举、代表元.

 

  1. /**
  2.  * 引用PresentationFramework/System/WindowsBase;
  3.  * 代码文件：stackApp.cs
  4.  */
  5. //Stack 名字空间

  7. namespace Stack
  8. {
  9.     using System;
  10.     public class Stack
  11.     {
  12.         //first:栈最上面一个节点

  14.         private Node first = null;

  16.         //count:栈中结点的数量

  18.         private int count = 0;

  20.         //判空属性,提供get访问器

  22.         public bool Empty
  23.         {
  24.             get
  25.             {
  26.                 return (first == null);
  27.             }
  28.         }

  30.         //计数属性，提供get访问器

  32.         public int Count
  33.         {
  34.             get
  35.             {
  36.                 return count;
  37.             }
  38.         }

  40.         //压栈操作，返回注意object

  42.         public object Pop()
  43.         {
  44.             if (first == null)
  45.             {
  46.                 throw new InvalidOperationException("Can't pop from an empty stack.");
  47.             }
  48.             else
  49.             {
  50.                 object temp = first.Value;
  51.                 first = first.Next;
  52.                 count--;
  53.                 return temp;
  54.             }
  55.         }

  57.         //弹栈操作，返回空

  59.         public void Push(object o)
  60.         {
  61.             first = new Node(o, first);
  62.             count++;
  63.         }

  65.         //结点类

  67.         class Node
  68.         {
  69.             //结点具有两个属性：自己、指向下一个结点

  71.             public Node Next;
  72.             public object Value;

  74.             public Node(object value) : this(value, null) { }

  76.             public Node(object value, Node next)
  77.             {
  78.                 Next = next;
  79.                 Value = value;
  80.             }
  81.         }

  83.         class StackApp
  84.         {
  85.             static void Main()
  86.             {
  87.                 Stack s = new Stack();

  89.                 if (s.Empty)
  90.                     Console.WriteLine("This is an empty Stack.");
  91.                 else
  92.                     Console.WriteLine("This is not an empty Stack.");

  94.                 //往栈中压入5个结点

  96.                 for (int i = 0; i < 5; ++i)
  97.                     s.Push(i);

  99.                 Console.WriteLine("往栈中压入了{0}个元素", s.Count);

  101.                 //把栈中结点全部弹出来

  103.                 for (int i = 0; i < 5; ++i)
  104.                     Console.WriteLine("弹出了第{0}个元素，还剩{1}个元素.", (int)s.Pop() + 1, s.Count);

  106.                 s = null;
  107.                 System.Windows.Application app = new System.Windows.Application();
  108.                 app.Run();
  109.             }
  110.         }
  111.     }
  112. }

参考来源：Visual C#时尚编程百例 





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