C#学习：Collection类的初体验

快来打我* 2022-07-16 10:27 106阅读 0赞

## C\#学习：Collection类的初体验 ##

(2012-08-28 16:42:07)

![sg_trans.gif][]转载▼

<table style="margin:0px; padding:0px"> 
 <tbody> 
  <tr> 
   <td style="margin:0px; padding:0px 10px 0px 0px; font-family:宋体; vertical-align:top"> <span style="color:rgb(99,113,96)">标签：</span>&nbsp; <h3 style="margin:0px 5px 0px 0px; padding:0px; border:0px; list-style:none; display:inline; font-size:12px; font-weight:normal"> <a href="http://search.sina.com.cn/?c=blog&amp;q=collectionbase&amp;by=tag" style="text-decoration:none; color:rgb(102,153,0); white-space:nowrap" rel="nofollow">collectionbase</a></h3> &nbsp; <h3 style="margin:0px 5px 0px 0px; padding:0px; border:0px; list-style:none; display:inline; font-size:12px; font-weight:normal"> <a href="http://search.sina.com.cn/?c=blog&amp;q=innerlist&amp;by=tag" style="text-decoration:none; color:rgb(102,153,0); white-space:nowrap" rel="nofollow">innerlist</a></h3> &nbsp; <h3 style="margin:0px 5px 0px 0px; padding:0px; border:0px; list-style:none; display:inline; font-size:12px; font-weight:normal"> <a href="http://search.sina.com.cn/?c=blog&amp;q=%CA%FD%BE%DD%BD%E1%B9%B9%D3%EB%CB%E3%B7%A8&amp;by=tag" style="text-decoration:none; color:rgb(102,153,0); white-space:nowrap" rel="nofollow">数据结构与算法</a></h3> &nbsp; <h3 style="margin:0px 5px 0px 0px; padding:0px; border:0px; list-style:none; display:inline; font-size:12px; font-weight:normal"> <a href="http://search.sina.com.cn/?c=blog&amp;q=it&amp;by=tag" style="text-decoration:none; color:rgb(102,153,0); white-space:nowrap" rel="nofollow">it</a></h3> </td> 
   <td style="margin:0px; padding:0px; font-family:宋体; vertical-align:top; width:220px; white-space:nowrap"> <span style="color:rgb(99,113,96)">分类：</span>&nbsp;<a href="http://blog.sina.com.cn/s/articlelist_1566176181_6_1.html" style="text-decoration:none; color:rgb(102,153,0)" rel="nofollow">C#</a></td> 
  </tr> 
 </tbody> 
</table>

在C\#语言中定义一个Collection类最简单的方法就是把System.Collection库中的CollectionBase类作为基础类。Collection类中包括了很多方法和属性，这里介绍一下Add方法、Remove方法、Count方法和Clear方法。

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Collections;

namespace myCollection

public class Collection :CollectionBase

public void Add(Object item)

InnerList.Add(item);

public void Remove(Object item)

InnerList.Remove(item);

public void Clear()

InnerList.Clear();

public int Count()

return InnerList.Count;

关于以上的实际应用，一般的资料上只介绍了简单的仅“姓名”队列的应用：

class Program

static void Main(string\[\] args)

Collection names = new Collection();

names.Add("David");

names.Add("Bernic");

names.Add("Raymond");

names.Add("Clayton");

foreach (Object name in names)

Console.WriteLine(name);

Console.WriteLine("Number of names: \{0\}", names.Count());

names.Remove("Raymond");

Console.WriteLine("After remove Raymond,the number of names: \{0\}", names.Count());

names.Clear();

Console.WriteLine("Number of names: \{0\}", names.Count());

Console.ReadKey();

然而，实际应用中，数据类型复杂。以下，是根据图灵计算机科学丛书《数据结构与算法（C\#语言描述）》习题一所建立的复杂类型测试 （不涉及题目的具体解答）。

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using myCollection;

namespace tryCollectionClass

public class Students

private int studentID;

private string studentName;

public int ID

get

return studentID;

public string name

get

return studentName;

public Students(int id, string name)

this.studentID = id;

this.studentName = name;

class Program

static void Main(string\[\] args)

Collection studentCollection = new Collection();

Students stu1 = new Students(8503, "James");

Students stu2 = new Students(8518, "Allbort");

Students stu3 = new Students(8524, "YouGoFirst");

Students stu4 = new Students(8537, "WeFinished");

Students stu5 = new Students(8519, "ILikeIt");

studentCollection.Add(stu1);

studentCollection.Add(stu2);

studentCollection.Add(stu3);

studentCollection.Add(stu4);

studentCollection.Add(stu5);

foreach (Students s in studentCollection)

Console.WriteLine("\{0\}   \{1\}",s.name,s.ID);

Console.WriteLine();

Console.WriteLine(studentCollection.Count());

//Console.ReadKey();

studentCollection.Clear();

Console.WriteLine("Clear");

Console.WriteLine(studentCollection.Count());

Console.ReadKey();

![sg_trans.gif][]喜欢

![赠金笔][sg_trans.gif]赠金笔

阅读 (2809) ┊  [评论][Link 1]  (0) ┊ 收藏 (0)  ┊ [转载][Link 2] [(0)][Link 2]  ┊  喜欢 ▼  ┊ [打印][Link 3] ┊ [举报][Link 2]

前一篇： [C\#文件读写及相关操作][C]

后一篇：[我在Google Document上分享了我的作业][Google_Document]

[sg_trans.gif]: /images/20220716/e2abd5095c954ba095b354abaef9b77d.png
[Link 1]: http://blog.sina.com.cn/s/blog_5d59f3b501017zbt.html#commonComment
[Link 2]: http://blog.sina.com.cn/s/blog_5d59f3b501017zbt.html#
[Link 3]: http://blog.sina.com.cn/main_v5/ria/print.html?blog_id=blog_5d59f3b501017zbt
[C]: http://blog.sina.com.cn/s/blog_5d59f3b501017lc6.html
[Google_Document]: http://blog.sina.com.cn/s/blog_5d59f3b5010187os.html