不要手動StopWatch了，讓BenchmarkDotNet幫你，benchmark

Nuget: https://www.nuget.org/packages/BenchmarkDotNet/

Project Site: https://github.com/PerfDotNet/BenchmarkDotNet

using BenchmarkDotNet; namespace NumberRollOverTest { public class NumberRollOver { public const byte Max = byte.MaxValue; [Benchmark] public void TestRollOver() { RollOver(Max); } [Benchmark] public void TestRollOverByCast() { RollOverByCast(Max); } ... }

第二步，啟動Benchmark主程序（BenchmarkRunner）

using System;

namespace NumberRollOverTest
{
    class Program
    {
        static void Main(string[] args)
        {
            new BenchmarkDotNet.BenchmarkRunner().RunCompetition(new NumberRollOver());

            Console.Read();
        }

        
    }
}