C#学习：Collection类的初体验

快来打我* 2022-07-16 10:27 137阅读 0赞

## C\#学习：Collection类的初体验 ##

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

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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();

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