/// <summary>
/// 获取有作业数据的学生集合。
/// </summary>
/// <returns></returns>
public LocalStudents HasWorks()
{
if (this.Students != null && this.Students.Count > 0)
{
LocalStudents stus = new LocalStudents();
for (int i = 0; i < this.Students.Count; i++)
{
LocalStudent ls = this.Students[i];
if (ls != null && ls.HasWork())
{
stus.Add(ls);
}
}
stus.Sort();
return stus;
}
return null;
}
