public void removeAttandance(string UUID)
{
StuAttandance aim = getAttandance(UUID);
if (aim != null)
{
stuAttandances.Remove(aim);
}
}
public int CompareTo(object obj)
{
int flag = 0;
try {
StuAttandance stu = (StuAttandance)obj;
flag = DateTime.Compare(this.date, stu.date);
} catch (Exception ex) { throw new Exception("比较异常", ex.InnerException); }
return(flag);
}
public void addAttandance(StuAttandance att)
{
stuAttandances.Add(att);
stuAttandances.Sort();
}