計算程式段已耗用時間

計算程式碼片段啟動並執行時間長度，用Stopwatch類

1Stopwatch sw = new Stopwatch();
2sw.Start();
3Thread.Sleep(3000);
4sw.Stop();
5Console.WriteLine(sw.ElapsedMilliseconds());

每次擷取時間都要寫這麼幾行，為此封裝一個計算時間的類

 

Code
 public class RunningTimer : IDisposable
    {
        private long m_startTimeStamp = 0L;
        private long m_endTimeStamp = 0L;
        private string m_Desc;
        public string Description
        {
            get { return m_Desc; }
        }

        public RunningTimer(string description)
        {
            this.m_Desc = description;
            this.m_startTimeStamp = Stopwatch.GetTimestamp();
        }

        #region IDisposable 成員
        public void Dispose()
        {
            this.m_endTimeStamp = Stopwatch.GetTimestamp();
            double elapseSec = (double)(m_endTimeStamp - m_startTimeStamp) / Stopwatch.Frequency;
            string showText = string.Format("{0}->using:{1}s", this.m_Desc, elapseSec.ToString("0.00"));
            Console.WriteLine(showText);
        }
        #endregion
    }

 

調用的時候:

 

1using (RunningTimer timer = new RunningTimer("test"))
2{
3    Thread.Sleep(3000);
4}