依据日期取得星期

DateTime d = Convert.ToDateTime("2007-11-16");
Console.Write(d.DayOfWeek.ToString());
Console.Write("周" + ((int)d.DayOfWeek).ToString());

DateTime d = Convert.ToDateTime("2007-11-16");
Response.Write(d.DayOfWeek.ToString());
中文
DateTime d = Convert.ToDateTime("2007-11-16");
System.Globalization.CultureInfo cultureInfo = new System.Globalization.CultureInfo("zh-CN");
Response.Write("星期"+cultureInfo.DateTimeFormat.GetAbbreviatedDayName(d.DayOfWeek).ToString());