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  • C# 程序时间

    1.DateTime
               DateTime now = System.DateTime.Now;
               now.ToString();                                                       //显示: 2006/08/30 17:31:02
               now.ToString("yyyy-mm-dd hh:MM:ss");                //显示: 2006-08-30 05:39:11
               now.ToString("yyyy-mm-dd HH:mm:ss");                //显示: 2006-08-30 17:40:50
              System.DateTime.MaxValue.ToString();                   //显示: 9999/12/31 23:59:59
              System.DateTime.MinValue.ToString();                   //显示: 0001/01/01 0:00:00
             now.ToLongDateString();                                         //显示: 2006年8月30日
             now.ToLongTimeString();                                         //显示: 17:34:23
             now.ToShortTimeString();                                         //显示: 17:34
             now.ToString() + " " + now.Millisecond.ToString();   //显示: 2006/08/30 17:35:19 484

    2.程序运行时间:(单位 :  毫秒)
            System.Diagnostics ;  //名称空间
                 int x = 0;
                 int nu = 0;       
                Stopwatch sw = new Stopwatch();
                sw.Start();
                //程序开始
                 for (int i = 0; i < 1000000; i++)
                {
                    x += i;
                }
                //程序结束
                sw.Stop();
                this.label1.Text += ",sum=" + x.ToString();
                MessageBox.Show(sw.ElapsedMilliseconds.ToString());
    3.计算一个页面执行时间:
            在Global.asax.cs文件中增加以下代码:
             protected void Application_BeginRequest(Object sender, EventArgs e)
            {
                Application["StartTime"] = System.DateTime.Now;
            }
            protected void Application_EndRequest(Object sender, EventArgs e)
            {
                System.DateTime startTime = (System.DateTime)Application["StartTime"];
                System.DateTime endTime = System.DateTime.Now;
                System.TimeSpan ts = endTime - startTime;
                Response.Write("页面执行所用时间:" + ts.Milliseconds + " 毫秒");
            }

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  • 原文地址:https://www.cnblogs.com/JoshuaDreaming/p/2043170.html
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