C#求两个时间的差值

商品保质期

//dateStart&＃xff1a;系统时间&＃xff1b; dateEnd &＃xff1a;物品到期日期
DateTime dateStart &＃61; DateTime.Now.Date;//2021/7/8
DateTime dateEnd &＃61; Convert.ToDateTime("2021-07-15");
DateTime start &＃61; Convert.ToDateTime(dateStart.ToShortDateString());
DateTime end &＃61; Convert.ToDateTime(dateEnd.ToShortDateString());
//求差值
TimeSpan sp &＃61; end.Subtract(start);Console.WriteLine($"相差&＃xff1a;{sp.Days&＃43;1}天");