检测服务器运行时间&as和is效率之对比

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;

namespace ConsoleApplication1
{
    /// <summary>
    /// 检测服务器运行时间&as和is效率之对比
    /// </summary>
    class Class1{}

    class Program
    {
        private Class1 c1 = new Class1();

        static void Main(string[] args)
        {
            Program program = new Program();
            Stopwatch timer = new Stopwatch();
            timer.Start();
            for (int i = 0; i < 10000; i++)
            {
                program.DoSomething1();
            }
           timer.Stop();
           decimal micro = timer.Elapsed.Ticks/10m;
           Console.WriteLine("执行DoSomeThing1()10000次的时间:{0:F1} 微秒.",micro);

           timer = new Stopwatch();
           timer.Start();
           for (int i = 0; i < 10000; i++)
           {
                program.DoSomething2();
           }
           timer.Stop();
           micro = timer.Elapsed.Ticks / 10m;
           Console.WriteLine("执行DoSomeThing2()10000次的时间:{0:F1} 微秒.", micro);
        }
        public void DoSomething1()
        {
            object c2 = c1;
            if (c2 is Class1)
            {
                Class1 c = (Class1) c2;
            }
        }
        public void DoSomething2()
        {
            object c2 = c1;
            Class1 c = c2 as Class1;
            if (c != null)
            {
                //其他操作
            }
        }
    }
}