测量运行时间

            System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
            sw.Start();
            //这里填写要执行的代码

            sw.Stop();
            Console.WriteLine("总运行时间：" + sw.Elapsed);
            Console.WriteLine("测量实例得出的总运行时间（毫秒为单位）：" + sw.ElapsedMilliseconds);

            double duration = (double)sw.ElapsedTicks / (double)System.Diagnostics.Stopwatch.Frequency * 1000;
            Console.WriteLine("测量实例得出的总运行时间（毫秒为单位）：" + duration.ToString("N4"));

            Console.WriteLine("总运行时间(计时器刻度标识)：" + sw.ElapsedTicks);
            Console.WriteLine("计时器是否运行：" + sw.IsRunning.ToString());