Code using System; using System.Collections.Generic; using System.Text; using System.Collections; namespace ConsoleApplication1
{ class Program
{ staticvoid Main(string[] args)
{
ArrayList al =new ArrayList();
al.Add(100);//单个添加 foreach (int number innewint[6] { 9, 3, 7, 2, 4, 8 })
{
al.Add(number);//集体添加方法一 } int[] number2 =newint[2] { 11, 12 };
al.AddRange(number2);//集体添加方法二 al.Remove(3);//移除值为3的 al.RemoveAt(3);//移除第3个 ArrayList al2 =new ArrayList(al.GetRange(1, 3));//新ArrayList只取旧ArrayList一部份
Console.WriteLine("遍历方法一:"); foreach (int i in al)//不要强制转换 {
Console.WriteLine(i);//遍历方法一 }
Console.WriteLine("遍历方法二:"); for (int i =0; i < al2.Count; i++)//数组是length { int number = (int)al2[i];//一定要强制转换 Console.WriteLine(number);//遍历方法二
}
}
}
}