const int SECOND = 1;const int MINUTE = 60 * SECOND;const int HOUR = 60 * MINUTE;const int DAY = 24 * HOUR;const int MONTH = 30 * DAY;if (delta < 0){  return "not yet";}if (delta < 1 * MINUTE){  return ts.Seconds == 1 ? "1秒前" : ts.Seconds + "秒前";}if (delta < 2 * MINUTE){  return "1分钟之前";}if (delta < 45 * MINUTE){  return ts.Minutes + "分钟";}if (delta < 90 * MINUTE){  return "1小时前";}if (delta < 24 * HOUR){  return ts.Hours + "小时前";}if (delta < 48 * HOUR){  return "昨天";}if (delta < 30 * DAY){  return ts.Days + " 天之前";}if (delta < 12 * MONTH){  int months = Convert.ToInt32(Math.Floor((double)ts.Days / 30));  return months <= 1 ? "一个月之前" : months + "月之前";}else{  int years = Convert.ToInt32(Math.Floor((double)ts.Days / 365));  return years <= 1 ? "一年前" : years + "年前";}

转载：