namespace _09.List泛型集合
{
    class Program
    {
        static void Main(string[] args)
        {
            //创建泛型集合对象
            List<int> list = new List<int>();   //创建了一个整型的泛型集合
            list.Add(1);
            list.Add(2);
            list.Add(3);
            list.AddRange(new int[] { 4, 5, 6, 7, 8, 9, 0 });
            foreach (var item in list)
            {
                Console.WriteLine(item);
            }
            Console.WriteLine("====================================");
            //将List泛型集合转换成数组
            int[] lArray=list.ToArray();
            for (int i = 0; i < lArray.Length; i++)
            {
                Console.WriteLine(lArray[i]);
            }
            Console.WriteLine("====================================");
            //将整型数组转换成泛型集合
            List<int> listTwo=lArray.ToList();
            for (int i = 0; i < listTwo.Count; i++)
            {
                Console.WriteLine(listTwo[i]);
            }
            Console.ReadKey();
        }
    }
}