C# 一段自己写的测试函数速度的简易代码

        static void Test() {
            SpeedTester.Start(10, () => {
                var d = DateTime.UtcNow;
            }, () => {
                var d = Environment.TickCount;
            });
        }

    /// <summary>
    /// 测量代码执行速度的方法
    /// </summary>
    public static class SpeedTester {
        /// <summary>
        /// 测试单个函数的执行速度
        /// </summary> 
        public static void Start(Action action, string flag, int i = 0) {
            Stopwatch sw = new Stopwatch();
            sw.Start();
            action();
            sw.Stop();
            Console.WriteLine($"第{i + 1}次 {flag} 耗时:{sw.ElapsedMilliseconds}毫秒,Ticks={sw.ElapsedTicks}");
        }
        /// <summary>
        /// 测试多个函数的执行速度
        /// </summary>
        /// <param name="count">测试的次数</param>
        /// <param name="actions">测试的函数</param>
        public static void Start(int count, params Action[] actions) {
            Console.WriteLine("============================================");
            for (int i = 0; i < count; i++) {
                for (int j = 0; j < actions.Length; j++) {
                    Start(actions[j], $"第{j + 1}个方法", i);
                }
                Console.WriteLine("============================================");
            }
        }
    }