ArrayList應用:客戶資料新增, 搜尋, 刪除－天天向上

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections; // 加入才看得到ArrayList

namespace ConsoleArrayList
{
     class ArrayListTest
     {
         static void Main(string[] args)
         {
             ArrayList custList = new ArrayList();
             object custName;
             int k, count;

            string goOn = "Y";
             while (goOn.ToUpper() == "Y")
             {
                 Console.Write("請輸入客戶名稱: ");
                 custName = Console.ReadLine();
                 custList.Add(custName);
                 Console.Write("是否繼續輸入? Y/N");
                 goOn = Console.ReadLine();
                 Console.WriteLine();
             }
             Console.WriteLine();
             //------------------------------------------------------------------------------
             //檢查custList
             count = custList.Count;
             for (k = 0; k <= count - 1; k++)
             {
                 Console.WriteLine((k + 1).ToString() + " :" + custList[k] + " ");
             }

            //------------------------------------------------------------------------------
             Console.WriteLine("======================================================");
             Console.WriteLine("遞增排序");
             // 遞增排序
             custList.Sort();
             count = custList.Count;
             for (k = 0; k <= count - 1; k++)
             {
                 Console.WriteLine((k+1).ToString() + " :" + custList[k] + " ");
             }
             //------------------------------------------------------------------------------
             custList.Reverse();
             Console.WriteLine("======================================================");
             Console.WriteLine("遞減排序");
             count = custList.Count;
             for (k = 0; k <= count - 1; k++)
             {
                 Console.WriteLine((k + 1).ToString() + " :" + custList[k] + " ");
             }

            //------------------------------------------------------------------------------
             Console.WriteLine("請輸入欲查詢的客戶名稱: ");
             custName = Console.ReadLine();
             Console.WriteLine();
             // 使用BinarySearch
             int index;
             index = custList.BinarySearch(custName);
             string YN = "N";
             if (index >= 0)
             {
                 Console.WriteLine("第{0}客戶的資料是: {1}", index + 1, custList[index]);
                 Console.WriteLine();
                 Console.WriteLine("是否刪除該資料?");
                 YN = Console.ReadLine();
                 if (YN.ToUpper() == "Y")
                 {
                     custList.Remove(custName);
                 }
             }
             else
             {
                 Console.WriteLine("無此客戶名稱!");
                 Console.WriteLine("是否插入該資料?");
                 YN = Console.ReadLine();
                 if (YN.ToUpper() == "Y")
                 {
                     custList.Insert(count, custName);
                 }
             }

            //-----------------------------------------------------------------
             count = custList.Count;
             for (k = 0; k <= count - 1; k++)
             {
                 Console.WriteLine((k + 1).ToString() + " :" + custList[k] + " ");
             }
             Console.ReadLine();
         }
     }
}

測試1:

刪除客戶名單