装箱和拆箱

    class Program
    {
        static void Main(string[] args)
        {
            //int n = 10;
            //object o = n;//装箱
            //int nn = (int)o;//拆箱


            //ArrayList list = new ArrayList();
            //List<int> list = new List<int>();

            //Stopwatch sw = new Stopwatch();
            ////00:00:02.4370587
            ////00:00:00.2857600
            //sw.Start();
            /* 这个循环发生了100万次装箱操作 */
            //for (int i = 0; i < 10000000; i++)
            //{
            //    list.Add(i);
            //}
            //sw.Stop();
            //Console.WriteLine(sw.Elapsed);
            //Console.ReadKey();

            //这个地方没有发生任意类型的装箱或者拆箱
            //string str = "123";
            //int n = Convert.ToInt32(str);
                           
            //int n = 10;
            //IComparable i = n;//发生装箱
        }
    }