c#获取二个时间之前的天数
DateTime t1 = Convert.ToDateTime("1999-8-9"); DateTime t2 = Convert.ToDateTime("2007-8-19"); TimeSpan ts = t2 - t1; int d = ts.Days; d就是间隔的天数
DateTime t1 = Convert.ToDateTime("1999-8-9"); DateTime t2 = Convert.ToDateTime("2007-8-19"); TimeSpan ts = t2 - t1; int d = ts.Days; d就是间隔的天数