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判断日期是否属于本周

2009-12-09 14:49 162 查看
public bool IsInSameWeek(DateTime dt1, DateTime dt2)
{
DateTime dtBig;
DateTime dtSmall;
if (DateTime.Compare(dt1, dt2) > 0)
{
dtBig = dt1;
dtSmall = dt2;
}
else
{
dtBig = dt2;
dtSmall = dt1;
}

int days = dtBig.DayOfYear - dtSmall.DayOfYear;
double weeks = (double)dtBig.DayOfWeek - (double)dtSmall.DayOfWeek;
if (Math.Abs(days) < 7 && weeks >= 0)
{
return true;
}
return false;
}
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