C# TimeSpan.Subtract方法代码示例

        private static void PrintDayStats(IReadOnlyList<DateTime> dates)
        {
            var totalMinutesIn = new TimeSpan(0, 0, 0, 0);
            var totalMinutesOut = new TimeSpan(0, 0, 0, 0);

            DateTime lastDate = dates[0];

            var isIn = false;
            for (int i = 1; i < dates.Count; i++)
            {
                var instance = dates[i];
                isIn = !isIn;
                if (isIn)
                {
                    totalMinutesIn = totalMinutesIn.Add(instance.Subtract(lastDate));
                }
                else
                {
                    totalMinutesOut = totalMinutesOut.Add(instance.Subtract(lastDate));
                }
                lastDate = instance;
            }
            Console.WriteLine("Total minutes in: {0}, out: {1}, extra: {2}", totalMinutesIn, totalMinutesOut, totalMinutesIn.Subtract(Day));
            _overtime = _overtime.Add(totalMinutesIn.Subtract(Day));
        }

 protected void Page_Load(object sender, EventArgs e)
 {
     HyLonginLog hyLonginLog = new HyLonginLog();
     DataTable dt = hyLonginLog.GetDataTableAllOnLine();
     if (dt.Rows.Count > 0)
     {
         DateTime t1 = new DateTime();
         DateTime t2 = DateTime.Now;
         DateTime t3 = new DateTime();
         double diff = 0;
         double onlineTimeTotal = 0;
         for (int i = 0; i < dt.Rows.Count; i++)
         {
             t1 = Convert.ToDateTime(dt.Rows[i]["hyUpateTime"].ToString());
             t3 = Convert.ToDateTime(dt.Rows[i]["hyLoginTime"].ToString());
             TimeSpan tt1 = new TimeSpan(t1.Ticks);
             TimeSpan tt2 = new TimeSpan(t2.Ticks);
             TimeSpan tt3 = new TimeSpan(t3.Ticks);
             diff = Convert.ToDouble(tt2.Subtract(tt1).TotalMinutes.ToString());
             onlineTimeTotal = Convert.ToDouble(tt2.Subtract(tt3).TotalMinutes.ToString());
             if (diff >= 10)
             {
                 hyLonginLog.id = dt.Rows[i]["id"].ToString();
                 hyLonginLog.hyLogoutTime = DateTime.Now.ToString();
                 hyLonginLog.hyNotOnLine = "1";
                 hyLonginLog.hyonlineTimeTotal = onlineTimeTotal.ToString("0.00");
                 hyLonginLog.UpdateLogOutTime();
             }
         }
     }
 }

        public void Draw(SpriteBatch sb, int xlocation, TimeSpan currentTime)
        {
            if (!visible) return;

            int stretch = 0;
            float fadeOutAmt = 1.0f;
            if (completed)
            {
                stretch = (int)(currentTime.Subtract(compSpan).TotalMilliseconds / 5); //magic numbers: 500 milliseconds to grow 50 pixels
                fadeOutAmt = Math.Max((50.0f - stretch) / 50.0f , 0.0f);
                //scoreColor.A = (byte)Math.Max((125 * fadeOutAmt), 0);
                //scoreColor = scoreColor * Math.Max(fadeOutAmt, 0);
                if (stretch > 50)
                {
                    visible = false;
                    return;
                }
            }
            double fadeIn = currentTime.Subtract(moveSpan).TotalMilliseconds + 1200.0f;
            if (fadeIn < 0)
                fadeOutAmt = (float)(800.0f + fadeIn) / 800.0f; //magic numbers!

            if (GetMoveIcon() != null)
                sb.Draw(GetMoveIcon(), new Rectangle(xlocation - stretch, GLOBALS.WINDOW_HEIGHT - (160 + stretch), 120 + (2 * stretch), GLOBALS.WINDOW_HEIGHT - (350 - (2 * stretch))), scoreColor * fadeOutAmt);
        }

        public virtual float ApplyVelocity(TimeSpan from, TimeSpan to, TimeSpan totalDuration, float totalDistance)
        {
            if (from > totalDuration)
            {
                while (from > totalDuration)
                {
                    from = from.Subtract(totalDuration);
                    to = to.Subtract(totalDuration);
                }
            }
            else
            {
                if (to > totalDuration) to = totalDuration;
            }

            double scaleTime = ((double)totalDuration.TotalSeconds / (Right - Left));
            float scaleDistance = totalDistance / (float)Area;

            double l = Left + (double)from.TotalSeconds / scaleTime;
            double r = Left + (double)to.TotalSeconds / scaleTime;

            double distance = Integral(l, r);
            float deltaDistance = scaleDistance * (float)distance;

            return deltaDistance;
        }

 private bool decidetime()
 {
     TimeSpan ts1 = new TimeSpan(dtpDate.Value.Ticks);
     TimeSpan ts2 = new TimeSpan(dtpDate1.Value.Ticks);
     TimeSpan ts = ts1.Subtract(ts2).Duration();
     if ((int)ts.Days > 31)
     {
         MessageBox.Show("跨月查询不能多于三十一天！", "提示", MessageBoxButtons.OK);
         return false;
     }
     if ((dtpDate.Value.AddYears(1).Year == dtpDate1.Value.Year || dtpDate.Value.Year == dtpDate1.Value.Year) && ((dtpDate.Value.Month == dtpDate1.Value.Month) || (dtpDate.Value.AddMonths(1).Month == dtpDate1.Value.Month)))
     { }
     else
     {
         MessageBox.Show("不能跨多月份查询！", "提示", MessageBoxButtons.OK);
         return false;
     }
     if ((int)ts.Days > 31)
     {
         MessageBox.Show("跨月查询不能多于三十一天！", "提示", MessageBoxButtons.OK);
         return false;
     }
     if (Convert.ToDateTime(dtpDate1.Value) > DateTime.Now)
     {
         dtpDate1.Value = DateTime.Now;
     }
     if (Convert.ToDateTime(dtpDate.Value).Date > Convert.ToDateTime(dtpDate1.Value).Date)
     {
         MessageBox.Show("开始时间不能大于结束时间！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
         return false;
     }
     return true;
 }

        static void Main(string[] args)
        {
            //微软MSMQ消息队列与WCF离线操作
            //HTTP NetMsmqBinding_IWCFMSMQService
            WCFMSMQServiceClient wcfServiceProxy = new WCFMSMQServiceClient("NetMsmqBinding_IWCFMSMQService");
            //通过代理调用SayHello服务,这里及时服务调用服务失败，消息会发送到队列里进行缓存。

            TimeSpan ts1 = new TimeSpan(DateTime.Now.Ticks);
            for (int i = 0; i < 100000; i++)
            {
                Console.WriteLine("xiaopotian");
                wcfServiceProxy.SayHelloMSMQ("xiaopotian");
            }

            TimeSpan ts2 = new TimeSpan(DateTime.Now.Ticks);
            TimeSpan ts = ts2.Subtract(ts1).Duration();
            //string a = ts.Hours.ToString() + "小时" + ts.Minutes.ToString() + "分" + ts.Seconds.ToString() + "秒";
            Console.WriteLine(ts.Milliseconds);

            //Thread.Sleep(2000);//客户端休眠两秒，继续下一次调用
            //Console.WriteLine("WCF 2 Call at:{0}", DateTime.Now);
            //wcfServiceProxy.SayHelloMSMQ("Frank Xu");
            //Thread.Sleep(2000);//客户端休眠两秒，继续下一次调用
            //Console.WriteLine("WCF 3 Call at:{0}", DateTime.Now);
            //wcfServiceProxy.SayHelloMSMQ("Frank Xu Lei");
            //For Debug
            Console.WriteLine("Press any key to continue");
            Console.Read();
        }

    protected void Page_Load(object sender, EventArgs e)
    {
        string htmlstring = "";

        News spfNews = new News();
        int RecordCount = spfNews.LoadSpfNews();
        if (RecordCount > 0)
        {
            for (int i = 0; i < RecordCount; ++i)
            {
                TimeSpan ts1 = new TimeSpan(DateTime.Now.Ticks);
                TimeSpan ts2 = new TimeSpan(spfNews.SpfNews[i].updateTime.Ticks);
                TimeSpan ts = ts1.Subtract(ts2).Duration();

                // string strA = null;
                // if ( ts.Days/365 > 0 ) strA = (ts.Days/365).ToString() + " 年之前";
                // else
                // {
                    // if ( ts.Days/30 > 0 ) strA = (ts.Days/30).ToString() + " 月之前";
                    // else
                    // {
                        // if ( ts.Days > 0 ) strA = ts.Days.ToString() + " 天之前";
                        // else
                        // {
                            // if ( ts.Hours > 0 ) strA = ts.Hours.ToString() + " 小时之前";
                            // else
                            // {
                                // if ( ts.Minutes > 0 ) strA = ts.Minutes.ToString() + " 分钟之前";
                                // else
                                // {
                                    // if ( ts.Seconds > 0 ) strA = ts.Seconds.ToString() + " 秒之前";
                                // }
                            // }
                        // }
                    // }
                // }
                //string strB = Function.getDateTimeLaterThan(spfNews.SpfNews[i].updateTime.Ticks);
                htmlstring += "<div class=\"art-post post-94269 post type-post status-publish format-standard hentry category-camera-lens tag-canon tag-ebay\">\n"
                            + "<div class=\"art-post-body\">\n"
                            + "<div class=\"art-post-inner art-article\">\n"
                            + "<div class=\"updatetime\">发布在 " + Function.getDateTimeLaterThan(spfNews.SpfNews[i].updateTime)
                            + "</div>\n"
                            + "<div class=\"art-article-up\">\n"
                            + "<h2 class=\"art-postheader\">"
                            + (i+1).ToString() + ". " + spfNews.SpfNews[i].newsTitle + "</h2>\n"
                            + "<div class=\"art-postcontent\">\n"
                            + spfNews.SpfNews[i].newsContent
                            + "</div>\n"
                            + "</div>\n"
                            + "<div class=\"cleared\"></div>\n"
                            + "</div>\n"
                            + "<div class=\"cleared\"></div>\n"
                            + "</div>\n" + "</div>\n";
            }
        }
        else
            htmlstring += "●暂无信息\n";

        this.div_post.InnerHtml = htmlstring;
    }

        /// <summary>
        /// Get the notifications for the nex 15 minutes
        /// </summary>
        async Task GetUpcomingNotifications()
        {
            try
            {
                var client = new BMAStaticDataService.StaticClient();
                var result = await client.GetUpcomingNotificationsAsync(DateTime.Now);

                if (result.Count == 0)
                    return;

                List<int> durationList = new List<int>();
                foreach (var item in result)
                {
                    TimeSpan ts1 = new TimeSpan(item.Time.Hour, item.Time.Minute, 0);
                    TimeSpan ts2 = new TimeSpan(DateTime.Now.Hour, DateTime.Now.Minute, 0);
                    
                    int duration = Convert.ToInt32(Math.Round(ts1.Subtract(ts2).Duration().TotalMinutes, MidpointRounding.AwayFromZero));

                    durationList.Add(duration);
                }


                if (durationList.Count() > 0)
                {
                    ShowNotification(durationList);
                    SetupTiles(durationList);
                }
            }
            catch (Exception)
            {
                
                throw;
            }
        }

        static void Main(string[] args)
        {
            var factory = new ConnectionFactory() { HostName = "localhost" };
            using (var connection = factory.CreateConnection())
            using (var channel = connection.CreateModel())
            {
                channel.QueueDeclare(queue: "hello",
                                     durable: false,
                                     exclusive: false,
                                     autoDelete: false,
                                     arguments: null);

                string message = "xiaopotian";
                var body = Encoding.UTF8.GetBytes(message);
                TimeSpan ts1 = new TimeSpan(DateTime.Now.Ticks);
                for (int i = 0; i < 100000; i++)
                {
                    channel.BasicPublish(exchange: "",
                                     routingKey: "hello",
                                     basicProperties: null,
                                     body: body);
                    Console.WriteLine("xiaopotian");
                }

                TimeSpan ts2 = new TimeSpan(DateTime.Now.Ticks);
                TimeSpan ts = ts2.Subtract(ts1).Duration();
                Console.WriteLine(ts.TotalMilliseconds);
            }

            Console.WriteLine(" Press [enter] to exit.");
            Console.ReadLine();
        }

 public void Update(TimeSpan total)
 {
     total = total.Subtract(Map01.start);
     if (total.Ticks < 0)
         total = total.Negate();
     time = total.Minutes + ":" + total.Seconds.ToString("00.") + ":" + total.Milliseconds;
 }

        public void Delay()
        {
            //delay to test (3 seconds)
            var delay = new TimeSpan(0, 0, 0, 3 /* seconds */);
            //tollerance (actual time should be between 2.9 and 3.1 seconds)
            var tollerance = new TimeSpan(0, 0, 0, 0, 100 /* milliseconds */);

            Stopwatch stopwatch = new Stopwatch();
            Timer timer = new Timer();

            Loop.Current.QueueWork(() => {
                stopwatch.Start();
                timer.Start(delay, TimeSpan.Zero, () =>
                {
                    stopwatch.Stop();
                    timer.Stop();
                    timer.Close();
                });
            });

            Loop.Current.Run();

            Assert.GreaterOrEqual(stopwatch.Elapsed, delay.Subtract(tollerance));
            Assert.Less(stopwatch.Elapsed, delay.Add(tollerance));
        }

 public static string GetStatusPic(object Status, object TJDate, object Path)
 {
     if (Status.ToString() == "70")
     {
         if (TJDate.ToString() != "")
         {
             DateTime dtNow = DateTime.Now;
             DateTime dtTJ = DateTime.Parse(TJDate.ToString());
             //看时间，超过2天，黄灯，超过3天红灯
             TimeSpan tsNow = new TimeSpan(dtNow.Ticks);
             TimeSpan tsTJ = new TimeSpan(dtTJ.Ticks);
             TimeSpan ts = tsNow.Subtract(tsTJ).Duration();
             if (ts.Days >= 3)
             {
                 return "<img src='"+ Path + "/Images/redLight.gif' />";
             }
             else if (ts.Days >= 2)
             {
                 return "<img src='" + Path + "/Images/yellowLight.gif' />";
             }
             return "";
         }
         return "";
     }
     return "";
 }

    public string DateCompare(string beginDate, string endDate)
    {
        try
        {
            if (beginDate != null && endDate != null)
            {
                DateTime ed=Convert.ToDateTime(endDate);
                DateTime bd = Convert.ToDateTime(beginDate);
                //TimeSpan dt = Convert.ToDateTime(endDate) - Convert.ToDateTime(beginDate);
                //return dt.ToString();

                string dateDiff = null;
                TimeSpan ts1 = new TimeSpan(ed.Ticks);
                TimeSpan ts2 = new TimeSpan(bd.Ticks);
                TimeSpan ts = ts1.Subtract(ts2).Duration();
                dateDiff =ts.Hours.ToString() + ":"
                    + ts.Minutes.ToString() + ":"
                    + ts.Seconds.ToString();

                return dateDiff;

            }
            else
            {
                return "";
            }
        }
        catch (Exception ex)
        {
            return "";
        }
    }

 /// <summary>
 /// 程序执行时间测试
 /// </summary>
 /// <param name="dateBegin">开始时间</param>
 /// <param name="dateEnd">结束时间</param>
 /// <returns>返回(秒)单位，比如: 0.00239秒</returns>
 public static string ExecDateDiff(DateTime dateBegin, DateTime dateEnd)
 {
     TimeSpan ts1 = new TimeSpan(dateBegin.Ticks);
     TimeSpan ts2 = new TimeSpan(dateEnd.Ticks);
     TimeSpan ts3 = ts1.Subtract(ts2).Duration();
     return ts3.TotalMilliseconds.ToString();
 }

 /// <summary>
 /// 当天剩余秒数
 /// </summary>
 /// <returns></returns>
 public static int SecondsRemainingDay()
 {
     var ts1=new TimeSpan(DateTime.Now.Ticks);
     var ts2 = new TimeSpan(DateTime.Now.AddDays(1).Date.Ticks);
     var ts = ts1.Subtract(ts2).Duration();
     return ts.TotalSeconds.To<int>()-1;
 }