C#时间差

 1      #region 获取时间差
        /// <summary>
        /// 获取时间差
        /// </summary>
        /// <param name="t">实际时间</param>
        /// <returns>时间差</returns>
        public static string GetDiffTime(DateTime t)
        {
            var time = DateTime.Now - t;
            if (time.TotalDays > 30)
            {
                var currentMonth = Math.Floor(time.TotalDays / 30);
                if (currentMonth >= 12)
                {
                    return "1年前";
                }
                return currentMonth + "个月前";
            }
            if (time.TotalHours > 24)
            {
                return Math.Floor(time.TotalDays) + "天前";
            }
            if (time.TotalHours > 1)
            {
                return Math.Floor(time.TotalHours) + "小时前";
            }
            if (time.TotalMinutes > 1)
            {
                return Math.Floor(time.TotalMinutes) + "分钟前";
            }
            return Math.Floor(time.TotalSeconds) + "秒前";
        }

        #endregion