/// <summary>
        /// 计算两个日期的时间间隔
      /// </summary>
        /// <param name="DateTime1">第一个日期和时间</param>
        /// <param name="DateTime2">第二个日期和时间</param>
        /// <returns></returns>
        private string DateDiff(DateTime DateTime1, DateTime DateTime2)
        {
            string dateDiff = null;
            TimeSpan ts1 = new TimeSpan(DateTime1.Ticks);
            TimeSpan ts2 = new TimeSpan(DateTime2.Ticks);
            TimeSpan ts = ts1.Subtract(ts2).Duration();

            if (ts.Days > 0) { dateDiff += ts.Days + "天 "; }
            if (ts.Hours > 0 || ts.Minutes > 0)
            {
                dateDiff += ts.Hours + Math.Round(((double)ts.Minutes/60)*100)/ 100 + "小时 ";
            }
            return dateDiff;
        }

 function DateDiff(date1, date2) {
            var oRtnDate = {Days:0,Hours:0,Minutes:0,Seconds:0};
            var dt1 = new Date(Date.parse(date1.replace(/-/g, '/')));//较早的日期时间
            var dt2 = new Date(Date.parse(date2.replace(/-/g, '/')));//较晚的日期时间

            var date3 = dt2.getTime() - dt1.getTime();
            //计算出相差天数
            var days = Math.floor(date3 / (24 * 3600 * 1000))
            //计算出小时数

            var leave1 = date3 % (24 * 3600 * 1000)    //计算天数后剩余的毫秒数
            var hours = Math.floor(leave1 / (3600 * 1000))
            //计算相差分钟数
            var leave2 = leave1 % (3600 * 1000)        //计算小时数后剩余的毫秒数
            var minutes = Math.floor(leave2 / (60 * 1000))

            //计算相差秒数
            var leave3 = leave2 % (60 * 1000)      //计算分钟数后剩余的毫秒数
            var seconds = Math.round(leave3 / 1000)
            oRtnDate.Days = days;
            oRtnDate.Hours = hours;
            oRtnDate.Minutes = minutes;
            oRtnDate.Seconds = seconds;
            return oRtnDate;
        }