真有意思[ZU14.CN]

DateTime someDay = new DateTime(2009, 6, 10); //此处换成你实际的日期
int wd = (int)someDay.DayOfWeek;

for (int i = 1 - wd; i < 8 - wd; i++)
{
    DateTime currentDay = someDay.AddDays(i);
    Console.Write(currentDay.ToShortDateString());
    Console.Write("----");
    Console.WriteLine(currentDay.DayOfWeek);
}