C#中ArrayList类的使用方法

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ArrayList元素的添加using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Collections;//在C#中使用ArrayList必须引用Collections类namespace arrayD{    class Program    {        static void Main(string[] args)        {            int[] arr = new int[] { 1,2,3,4,5};            ArrayList list = new ArrayList(arr);            Console.WriteLine("原始ArrayList类中的数据");            foreach (int i in list)            {                Console.Write(i+" ");            }            Console.WriteLine();            Console.WriteLine("使用add方法添加");            for (int i = 1; i < 5; i++)            {                list.Add(i+arr.Length);            }            foreach (int i in list)            {                Console.Write(i + " ");            }            Console.WriteLine();            Console.WriteLine("使用Insert方法添加");            list.Insert(5,6);            foreach (int i in list)            {                Console.Write(i + " ");            }            Console.WriteLine();            Console.ReadLine();        }    }} ArrayList元素的删除using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Collections;namespace arrayDel{    class Program    {        static void Main(string[] args)        {            int[] arr = new int[] { 1, 2, 3, 4, 5, 6 };            ArrayList list = new ArrayList(arr);            Console.WriteLine("删除前ArrayList元素");            foreach (int i in list)            {                Console.Write(i+" ");            }            Console.WriteLine();            list.RemoveRange(0, 3);//使用RemoveRange方法删除指定的元素            Console.WriteLine("删除后ArrayList元素");            foreach (int i in list)            {                Console.Write(i + " ");            }            Console.ReadLine();        }    }}  ArrayList元素的遍历using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Collections;namespace arrayBl{    class Program    {        static void Main(string[] args)        {            ArrayList arr = new ArrayList();            arr.Add("C#学习");            arr.Add("努力学习C#");            foreach (string i in arr)            {                Console.WriteLine(i);            }            Console.ReadLine();        }    }}ArrayList元素的查找using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Collections;namespace arrayCz{    class Program    {        static void Main(string[] args)        {            int[] arr = new int[] { 1,2,3,4,5,6};            ArrayList list = new ArrayList(arr);            Console.WriteLine(list.IndexOf(3));//使用IndexOf方法查找，返回值为坐标            Console.WriteLine(list.Contains(8));//使用Contains方法查找，返回值为True/False            Console.ReadLine();        }    }}

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