同学的博客

摘要： //本周是本年第几周private int DatePart(System.DateTime dt){int weeknow = Convert.ToInt32(dt.DayOfWeek);//今天星期几int daydiff = (-1) * (weeknow+1);//今日与上周末的天数差int days = System.DateTime.Now.AddDays(daydiff).DayOf... 阅读全文