［笔记］运行时间计算

 　　　/// <summary>
        /// 运行时间长度测试
        /// </summary>
        /// <param name="action">等待被测试的函数</param>
        /// <param name="times">执行的次数</param>
        /// <returns>运行的总时间</returns>
        public static TimeSpan ExecuteTime(Action action, int times)
        {
            Stopwatch stopwatch = new Stopwatch();
            stopwatch.Start();
            for (int i = 0; i < times; i++)
            {
                action.Invoke();
            }
            stopwatch.Stop();
            return TimeSpan.FromMilliseconds(stopwatch.ElapsedMilliseconds);
        }